In order to package these large chromosomes into the nucleus Histone proteins is used by the cell .
Eukaryotic chromosomes are places inside the nucleus, whereas prokaryotic chromosomes are inside the nucleoid. Eukaryotic cells looks larger than prokaryotic cells because eukaryotic cells have a nuclear membrane and membrane bound organelles.
Eukaryotic cells are bigger in size than that of prokaryotic cells because of the compartment structure. Eukaryotic cells contain different membrane-bound structures termed as organelles, that carries out different functions within the cell.
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. Where do most of the extinctions occur in the world? (Which biome?
The majority of extinctions worldwide are caused by sea level rise.
Where do extinction events usually happen?Most mass extinctions, including all of the "Big Five"—the End-Ordovician, Late Devonian, End-Permian, End-Triassic, and End-Cretaceous—as well as the more recently recognized Capitanian mass extinction of comparable severity to the Big Five—are correlated with sea level rise.
Where are the extinction rates the highest?Findings were erratic and challenging to compare between species. Furthermore, the majority (60%) of research on the impacts of climate change has focused on North America and Europe. But according to Urban, the three continents most at risk for extinction are South America, Australia, and New Zealand.
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What important function do stream pools serve?
a.
Stream pools serve as a habitat for juvenile fish.
b.
Stream pools serve as a habitat for organisms that have difficulty in feeding or navigating swifter areas of the stream.
c.
They have greater depth and lower velocity than other parts of the stream, thus allowing a habitat for organisms during dryer seasons.
d.
All of the above
Please select the best answer from the choices provided
A
B
C
D
The important function that stream pools serve is option d. All of the above:
a. Stream pools serve as a habitat for juvenile fish.
b. Stream pools serve as a habitat for organisms that have difficulty in feeding or navigating swifter areas of the stream.
c. They have greater depth and lower velocity than other parts of the stream, thus allowing a habitat for organisms during dryer seasons.
Describe stream pools.Pools are seen as a section of the stream with slow flowing and deep depths. Usually, pools are formed when water descends vertically over boulders or logs. The stream bed becomes deeper indented as a result of the water's flow. Because they may offer depth and quiet water, pools are crucial.
Note that Riffles and Pools Stream habitats offer a variety of educational opportunities. Hence, Stream pools provide a habitat for creatures that find it challenging to feed or move through the stream's more rapid sections.
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Look at the paragraph below. What are the two missing words that go in space 3?
1
are large molecules of DNA.2 are small sections of DNA which code for a particular sequence of 3
to make a specific 4
Different versions of genes are called
5
Ribonucleic acid, sometimes known as RNA, is a second nucleic acid that exists in every cell. RNA is a nucleotide polymer, much like DNA.
A nitrogenous base, a sugar with five carbons, and a phosphate group make up each of the nucleotides in RNA. Instead of deoxyribose, ribose serves as the five-carbon sugar in the case of RNA. Unlike deoxyribose, which contains the nitrogenous bases adenine, cytosine, and guanine at the 2′ carbon, ribose has a hydroxyl group.
They do not, however, contain thymine; rather, they do contain uracil, which is represented by the letter "U." The structure of RNA is a single-stranded molecule, not a double-stranded helix. According to their intended use, molecular biologists have given a variety of RNA types their own names. Transfer RNA (tRNA), messenger RNA (mRNA) and ribosomal RNA.
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atp can be produced as a by-product of the metabolism of glucose and several other substances. which of the following substances are possible sources of atp? check all that apply.
The following substances are possible sources of ATP includes triglycerides (fat), amino acids (protein), glucose (carbohydrate).
What materials could act as ATP sources?With one gramme of CHO delivering four calories of energy, carbohydrates are the body's primary meal energy source for the creation of ATP. After being digested, carbohydrates yield glucose, which is used in chemical processes to create ATP.
A pyruvic acid molecule can be created from glycerol, and Acetyl CoA can be produced right away from fatty acids. This allows for the entry of either triglyceride component into the citric acid cycle and the production of ATP.
The three steps that follow—glycolysis, tricarboxylic acid cycle (TCA or Krebs cycle), and lastly oxidative phosphorylation—catabolize glucose, which serves as the majority energy source for cellular metabolism. These three reactions result in the production of ATP.
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the form of natural selection that leads to an increase in the frequency of alleles that promote the fitness of genetic relatives is called:
The form of natural selection that leads to an increase in the frequency of alleles that promote the fitness of genetic relatives is called Kin Selection.
The true power of kin selection theory is its generality. Kin selection can explain a range of social interactions and not just altruistic cooperation. The simplest cases are that when interacting individuals are more closely related, they should be more likely to cooperate, show more selfish restraint, and show less aggression.
The honeybee and other social insects provide the clearest example of kin selection. They are also particularly interesting examples because of the peculiar genetic relationships among the family members. Male honeybees develop from the queen's unfertilized eggs and are haploid.
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Why is the quadrat method useful for estimating snail populations? explain why the same method would not be useful for counting fish populations.
The quadrat method is employed to calculate the population density of an area. This technique involves marking a sizable square area—an enclave—on the ground. It counts the number of animals in the xenclave.
How does the Quadrat technique work?A technique called quadrat sampling allows for the direct counting of organisms within a predetermined area (or sample) of their habitat. The abundance (number), density, frequency, and distribution of the population are all estimated using this method. Both randomly selected and transect-placed quadrat positions are acceptable.
What makes the quadrat approach effective?A well-known technique for studying ecology, and particularly biodiversity, is quadrat sampling. It is a vital technique for directly counting the organisms in a certain area (sample) of the habitat. The abundance (number), density, frequency, and dispersion of the population are all estimated using this method.
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two phenotypically normal people have a child who is color blind with turner syndrome. remember red green colorblindness is an x-linked recessive disorder and turner syndrome occurs when a person only has a single x chromosome. did the nondisjunction event occur in the mother, the father or both parents?
The father of a child with just one x chromosome has a nondisjunction event that results in a child with Turner syndrome who is colorblind.
A human chromosome is what?
Long DNA sequences are carried by chromosomes, structures that are found in the cell nucleus. The substance that contains genes is called DNA. It serves as the foundation for the human. Additionally, the proper DNA structure is aided by the proteins contained in chromosomes.
What do the chromosomes of the gender do?
When you are born, your X and Y chromosomal determine whether you are a boy or a girl. Gender chromosomes, as they are known, are actually called X and Y chromosomes in females. Men possess simply a X and a Y.
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HELP PLS ASAP!! I need this in an hour and 30 mins!
Ps. Have a lovely day
which method of microbian control does not rely on denaturing proteins and/or disrupting the integreity of the cell membrane
Lyophilization Methods of microbial control do not rely on protein denaturation and/or disruption of cell membrane integrity
Lyophilization Freeze-drying or freeze-drying is the process of freezing the product and placing it under vacuum, then removing the water from the product, allowing the ice cream to go directly from solid to vapor without going through a liquid phase. Freeze-drying is a water removal process commonly used to preserve perishable materials, extend shelf life, or make materials easier to transport. Freeze-drying is to sublime the frozen water in the material by lowering the pressure and applying heat after freezing the material. Lyophilization converts pharmaceuticals into stable solids by removing water from liquids
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when a sugar polymer is analyzed and found to have equal portions of reducing and non-reducing ends, it is likely that ________.
It is likely that it is a linear polymer.
The remaining two valence bonds in a linear polymer are primarily connected to hydrogen or another relatively minor hydrocarbon component. A linear polymer is a lengthy continuous chain of carbon-carbon bonds.
Based on how they react with Tollens, Benedict, or Fehling reagents, sugars can be categorized as reducing or non-reducing.
For example:
Amylose is a linear glucose polymer that is primarily connected by (14) bonds. It can be constructed from thousands of units of glucose. It is one of the two elements that make up starch; the other is amylopectin.
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Which tatement i the bet explanation of the pattern in the data?A. There i evidence that moquito bite caue an increae in temperature. B. There i a correlation between temperature and number of moquito bite. C. There i both correlation and caue between temperature and number of moquito bite. D. There i neither correlation nor caue between temperature and number of moquito bite brainly
There I evidence that mosquito chunks cause an increase in temperature is the guess rationalization of the sample in the data.
Contact our health care company if the mosquito bites seem to arise with warning signs of a severe condition. those may encompass an excessive fever, severe headache, frame aches, and signs of infection.
Mosquitoes, like every bug, are bloodless-blooded creatures. As an end result, they're incapable of regulating frame warmness and their temperature is essentially similar to their environment. Mosquitoes function first-rate at eighty stages F, end up torpid at 60 tiers F, and can not function underneath 50 degrees F.
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During transduction signals are relayed and amplified by protein phosphatases and second messengers. True or False
Answer: I believe that it is true.
Explanation:
Here is some more information if you are still confused. :)
https://biologydictionary.net/signal-transduction/
During transduction signals are relayed and amplified by protein phosphatases and second messengers. The given statement is true.
What is Adenosine 3′,5′-cyclic monophosphate (cAMP)?
Adenosine 3′,5′-cyclic monophosphate (cAMP) has the nucleotide that functions as a major second messenger in a variety of signaling pathways. Cell growth and differentiation, gene transcription, and protein expression are all controlled by cAMP.
AC generates cAMP, which binds the regulatory subunits of protein kinase A (PKA), allowing the catalytic subunits of PKA to be released and activated.
If a mutation produces major alterations in an enzyme at the start of a signal transduction route, the entire signal pathway is disrupted. Interruptions downstream in the signal cascade, on the other hand, can allow some parts of the pathway to continue while others do not.
Therefore, During transduction signals are relayed and amplified by protein phosphatases and second messengers. The given statement is true.
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Someone was prescribed tetracycline, an antibiotic, to treat severe acne, which is caused by a bacterium Propionibacterium acnes (P. acnes). Tetracycline interacts with ribosomes by attaching to the small ribosomal subunit, blocking protein production.
Both your eukaryotic cells and the bacterial cells are exposed to tetracycline. Predict which cell is impacted, how it is affected, and explain why that cell is impacted.
The Bacterial cell is impacted. Tetracycline works by binding specifically to the 30S ribosome of the bacteria.
Tetracyclines likely enter bacterial cells through passive diffusion and stop the growth of the bacteria by preventing protein synthesis or by rupturing the membrane. A growing number of different bacterial species develop resistance to tetracycline's bacteriostatic effects.
Tetracycline prevents the aminoacyl tRNA from attaching to the RNA-ribosome complex by specifically binding to the bacteria's 30S ribosome. Other stages of protein production are simultaneously inhibited by it.
Tetracycline is used to treat bacterial infections that affect the skin, eye, lymphatic, intestinal, vaginal, and urinary systems, as well as several other infections that are spread by ticks, lice, mites, and infected animals. These infections include pneumonia and other respiratory tract infections.
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The ability to produce language is a function of _________, whereas the ability to understand language is a function of _________.
Answer: Broca's area; Wernicki's area
Explanation:
which of the following choices list the correct order of structures through which urine passes on its way out of the body?
Calyx, renal pelvis, ureter, urinary bladder, and urethra are the correct order of tissues via which urine should flow to leave the body.
What is the renal pelvis made of?The renal pelvis, like the ureter, is lined with a thin layer of moist mucous membrane that is linked to a thicker layer of smooth muscle fibers that is encircled by connective tissue.
Calyx whereabouts in the kidney?Calyces, or cup-like projections, obstruct the renal pelvis' perimeter. Each pyramid's renal papillae are surrounded by a little calyx that collects urine from that particular pyramid. A major calyx is formed when several minor calyces come together.
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competition occurs between individuals of same species via aggression etc. when the individuals interfere with foraging, survival, reproduction of others, or by directly preventing their physical establishment in a portion of the habitat.
Interference competition takes place between individuals of equal species via aggression and so forth. whilst the individuals intrude with the foraging, survival, and replica of others, or via at once preventing their bodily establishment in a part of the habitat.
Whilst one organism bodily restricts any other organism's get entry to assets, it's far known as 'interference opposition'. Interference opposition is not unusual in animals such as songbirds, which preserve one-of-a-kind spatial territories with the aid of vocalizations.
Interference competition is an indirect impact that occurs thru the use of a shared aid and relies upon useful resource availability. Interference competition occurs by means of obstructing get entry to a resource and won't rely upon useful resource availability.
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Scientists determined that organisms of the genus spinoloricus were eukaryotes and not prokaryotes because spinoloricus cells have -.
Organisms of the genus spinoloricus that were eukaryotes and that not prokaryotes because the spinoloricus cells have the nuclear membrane
Spinolorix organisms are fundamentally different from other known eukaryotes in that they lack mitochondria and can exist without oxygen. However, their genetic material is contained within the nuclear membrane, making them more likely to be eukaryotic than prokaryotic. The nuclear membrane which is also called as the nuclear envelope. It consists of two lipid bilayer membranes. Nuclear membranes are present in both plant and animal cells The nuclear envelope is composed of two phospholipid bilayers. The membrane facing the cytoplasm is called the outer nuclear membrane (ONM) and the membrane facing the nucleoplasm is called the INM. The ONM is continuously connected to the ER and, like the ER, is decorated with ribosomes on its surface.
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local circuit neurons that run the entire length of the spinal cord and connect the medial parts of the spinal cord gray matter are primarily involved in which type of movement?
Local circuit neurons run the entire length of the spinal cord and connect the medial parts of the spinal cord grey matter is primarily involved in postural control.
Postural control is a term used to describe the way our central nervous system (CNS) regulates sensory information from other systems to produce adequate motor output to maintain a controlled, upright posture.
The visual, vestibular, and somatosensory systems are the main sensory systems involved in postural control and balance. Postural orientation and equilibrium are the two main functional goals of postural control.
The coordination of sensorimotor strategies to stabilize the body's center of mass during both self-initiated and externally triggered stimuli constitutes postural equilibrium.
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What, if any, foods in laurie’s diet provide a good source of calcium? indicate whether her intake of calcium is probably too high, probably adequate, or probably too low.
A good diet is to consume enough calcium.
Calcium is an important mineral needed by the body for the growth and maintenance of teeth and bones. Calcium levels must be kept in the blood at normal levels, because excess calcium can make the kidneys work harder to filter it, and can cause hypercalcemia. Meanwhile, calcium deficiency can interfere with normal function in the body. The body will take calcium stored in the bones, making it easy to cause porous bones.
Some foods that are sources of calcium include milk, cheese, yogurt and seafood such as clams, oysters, sardines and salmon.
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suppose your crude enzyme has a specific activity of 326 umol/min/mg. suppose your purified fraction has a specific activity of 2300 umol/min/mg. what is the fold purification?
The number of times a protein preparation is enriched for the protein being purified is referred to as the fold. A protein has been purified 10 fold if its concentration before and after filtration is 1nM and 10nM, respectively.
How do you locate the fold of purification?For the purification fold, you must first determine the specific activity for the A sample by dividing the total activity units by the total protein mgs, and then perform the same calculations for the B sample. Finally, divide B/A: Purification activities specifically.
What constitutes a good protein purification yield?Insoluble proteins, which must go through a denaturation and folding cycle, can be recovered with lower yields (5% to 20%), whereas soluble proteins can be recovered with good yields (>50%).
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The calvin cycle can best be described as the ______________________ reactions of photosynthesis.
The Calvin cycle can be described as the nonlight-dependent reactions of photosynthesis.
The photosynthesis process that involves three crucial steps and is light-independent is known as the Calvin cycle. Since the required energy carriers (ATP and NADPH) are byproducts of light-dependent reactions, the Calvin cycle is indirectly dependent on the light even though it is not directly dependent on it. Light is not necessary for the dark reaction of photosynthesis. Both light and dark reactions happen during the day.
It doesn't necessarily mean that a dark reaction takes place at night because it only needs the byproducts of a light reaction, such as ATP and NADPH. The general objective of light-dependent reactions is the conversion of light energy into chemical energy. In order to power the assembly of sugar molecules, the Calvin cycle will use this chemical energy.
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Which of the following states an accurate difference between the old nutrition facts label and the new nutrition facts label?
a. The old label groups all dietary fiber together the new label distinguishes between types of dietary fiber.
b. The old lobel lists Vitamin D and potassium; the new label lists Vitamins A and C.
c. The old label omits listing total calories, the new label lists total calories
d. The old label groups all sugars together the new label distinguishes between naturally occurring and added sugars
The old label groups all sugars together the new label distinguishes between naturally occurring and added sugars is an accurate difference between the old nutrition facts label and the new nutrition facts label.
The modifications include editing the listing of required vitamins that need to be declared at the label, updating serving length requirements, and imparting a refreshed design. The cutting-edge Nutrition Facts label makes it less complicated for purchasers to make knowledgeable choices approximately the meals they eat.
The vintage nutrients statistics label indexed the quantities of numerous essential nutrients and minerals, along with calcium, iron, and nutrients A and C. However, nutrients A and Care now not required to be indexed on the brand new nutrients statistics label.
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approximately how many genes are in our body?
The humans have between 20,000 and 25,000 genes.
What is genes?
The word "gene" can refer to a variety of concepts in biology. The molecular gene is a sequence of nucleotides in DNA that's also transcribed to produce a functional RNA, whereas the Mendelian gene is the fundamental unit of heredity. Protein-coding genes as well as noncoding genes are the two categories of molecular genes. DNA is first copied into RNA during gene expression.
Genetic material that is transferred from parent to child. The chromosomes in the nucleus of cells have precise sites where genes are ordered sequentially on DNA sequences.
The building blocks of life are genes. They include instructions for constructing particular molecules and proteins that control how the body develops and functions and enable human cells to function. Additionally, they influence how certain physical traits and attributes, like hair or eye color, are expressed.
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A patient suddenly develops a problem in which her mitochondria do not function. Which would you predict?.
The patient suddenly starts to experience mitochondrial dysfunction. Which one do you anticipate? a rise in oxyhemoglobin
What use does oxyhemoglobin serve?
Why is oxyhemoglobin useful?
When referring to hemoglobins (HEMOGLOBINS)
The process by which oxygen in the lungs to a tissue is carried out by hemoglobin. When oxygen is available, the molecule is known as oxyhemoglobin (OHb), whereas when oxygen is absent, the molecule is known as deoxyhemoglobin or reduced hemoglobin (RHb)
What distinguishes oxyhemoglobin from hemoglobin?
Oxyhemoglobin: the hemoglobin that has been loaded with oxygen, which is the main protein found in red blood cells. A protein molecule called hemoglobin binds to oxygen. With oxygen, hemoglobin creates an erratic, reversible connection. It is brilliant red and known as oxyhemoglobin when it has been oxygenated.
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The patient suddenly starts to experience mitochondrial dysfunction. Which one do you anticipate? a rise in oxyhemoglobin
What use does oxyhemoglobin serve?
Why is oxyhemoglobin useful?
When referring to hemoglobins (HEMOGLOBINS)
The process by which oxygen in the lungs to a tissue is carried out by hemoglobin. When oxygen is available, the molecule is known as oxyhemoglobin (OHb), whereas when oxygen is absent, the molecule is known as deoxyhemoglobin or reduced hemoglobin (RHb)
What distinguishes oxyhemoglobin from hemoglobin?
Oxyhemoglobin: the hemoglobin that has been loaded with oxygen, which is the main protein found in red blood cells. A protein molecule called hemoglobin binds to oxygen. With oxygen, hemoglobin creates an erratic, reversible connection. It is brilliant red and known as oxyhemoglobin when it has been oxygenated.
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Before it grows too large a cell with divide into two ____cells .so that each new cell receives its own genetic instructions,the cell___or copies all of its dna
Answer:
Explanation:
I believe it is...
daughter or identical (not sure)
replicates
In a body of water, a fish remains at a constant depth while motionless. In the same body of water, a person sinks while motionless. Why? more than one answer may be true.
Fish remains at constant depth while person sinks when motionless because person has higher density than water, more volume than fish, more mass than the fish, fish displaces less water, fish has lower density and volume that is all the options A, B, C, D, E, F and G are correct.
Density of a body may be defined as the ratio of Mass per unit volume of the substance. If a body is more dense then it has higher probability of sinking. if we see the relation between Density, Mass and Volume then Mass is directly related to density and volume is inversely related. Mass of the person is more than fish so the density of person will be more than the fish. Also, the volume of person is more than the fish. Now, the volume of water is more than the person, so the density of water is less than the person. This proves than person will sink in water. Fishes have gills and special type of air bladder within their body which helps them to stay and swim underwater even when they are motionless.
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Complete Question:
In a body of water, a fish remains at a constant depth while motionless. In the same body of water, a person sinks while motionless. Why? More than one answer may be true. Group of answer choices
A. The person has higher density than the water.
B. The fish displaces less water than the person.
C. The fish has a lower density than a person.
D. The fish has less volume than the water it displaces.
E. The person has more mass than the fish.
F. The fish has lower density than the water.
G. The person has more volume than the fish.
The collective term for various diseases of the heart and blood vessels is ______ disease.
The collective term for various diseases of the heart and blood vessels is cardiovascular diseases .
Coronary heart ailment (CHD) is the maximum common form of coronary heart disease, killing about 382,820 human beings yearly. each year approximately 805,000 people have a heart attack. of these, 605,000 are a primary coronary heart assault and 2 hundred,000 manifest in human beings who have already had a coronary heart attack.
Coronary heart sickness can't be cured but treatment can help control the symptoms and decrease the chances of problems along with coronary heart attacks. remedy can encompass: way of life modifications, which includes ordinary workout and preventing smoking.
Coronary Artery sickness (CAD) is treatable, but there may be no therapy. because of this as soon as diagnosed with CAD, you need to learn to stay with it for the relaxation of your lifestyles. by reducing your chance factors and dropping your fears, you can live a complete existence no matter CAD.
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vioxx and other prescription nonsteroidal anti-inflammatory drugs (n s a i ds) are potent inhibitors of the cyclooxygenase-2 (c o x-2) enzyme. high substrate concentrations reduce the efficacy of inhibition by these drugs. these drugs are
Those drugs are competitive inhibitors Vioxx and different prescription nonsteroidal pills (n s an I ds) are mighty inhibitors of the cyclooxygenase-2 (c o x-2) enzyme.
Rofecoxib (Vioxx) was one of the first selective cyclooxygenase-2 (COX-2) inhibitors (coxibs) to be authorized to be used in people. 5 years after its launch to the public, Vioxx became withdrawn from the marketplace because of the unfavorable cardiovascular consequences of the drug.
COX-2 Selective (consists of Bextra, Celebrex, and Vioxx) and Non-Selective Non-Steroidal capsules (NSAIDs).
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Hair-like structure that attaches the cell to a surface and can transfer genetic material from one cell to another.
Hair-like structure that attaches the cell to a surface and can transfer genetic material from one cell to another is called as fimbriae or pili
Bacterial cells' surfaces frequently have fimbriae and pili. Short, hair-like projections called fimbriae are used by bacteria to adhere to surfaces or other cells. Pili are similar structures that can help a bacterium move or transfer DNA to another bacterium, among other things. Many bacteria can move or locomote by using a whip-like structure called a flagellum (or flagella, if they have more than one).
Fimbriae or pili are proteins in nature. Fimbriae are formed by a pilin kind of protein.
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Select the correct answer.
What is brine rejection?
A.the dilution of saline levels in sea water
B.the exclusion of saltwater fish
C.the exclusion of freshwater fish
D.the exclusion of salt from sea ice
E.the expansion of water above freezing point
Brine rejection is the expansion of water above freezing point.
When water begins to freeze, salt is excluded from the ice crystal and the process is known as brine rejection. after then the surrounding seawater becomes saltier and denser .This results in to the formation of fresh ice that floats on the dense water, creating a barrier between the ocean and the atmosphere.
Hence, Brine rejection is a process that occurs when salty water freezes. when salts do not fit in the crystal structure then it get expelled. Since the oceans are salty, this process is important in nature.
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