A eukaryotic cell's nucleus divides in two during the process of mitosis, which is followed by the division of the parent cell into two daughter cells.
What are the feature of Mitosis?Two daughter cells are created from the parent cell during each round of cell division. As a result of the identical chromosome number in the parent and daughter cells, the cell is sometimes referred to as equational cell division. In plants, the process of mitosis promotes the growth of the plant's vegetative parts, such as the root and stem tips. In this process, segregation and combination do not take place.
An organism's development is aided by mitosis. Asexual reproduction occurs during the process of mitosis in single-celled organisms.
Learn more about mitosis here:
https://brainly.com/question/9809645
#SPJ4
4. Describe the medical and social benefits and risks of new technologies such as CT, PET, and MRI.
The medical and social benefits of new technologies such as CT, PET, and MRI. are:
More precise diagnosis and therapy options are available thanks to brain PET/MRI scans, which can uncover abnormalities that PET/CT misses in more than 50% of patients. Significantly less radiation exposure results in improved safety because PET/MRI scans expose patients to around 50% less radiation than PET/CT scans.What dangers do PET-CT scans pose?You will be exposed to very modest doses of radiation throughout these examinations. It has not been demonstrated that this little radiation exposure is harmful. There may be a slight possibility of an elevated risk of cancer in the future for kids or other individuals who require several PET scans, CT scans, and x-rays.
Compared to a CT scan, magnetic resonance imaging yields crisper images. An MRI is a better choice than x-rays or CT scans when doctors need to see soft tissues. Compared to CT images, MRIs can produce images of organs and soft tissues like damaged ligaments and herniated discs that are more accurate.
Therefore, X-rays, a form of radiation known as ionizing radiation, are used in CT scans. Your cells' DNA may be harmed, increasing the possibility that they may develop cancer.
Learn more about MRI machine from
https://brainly.com/question/21405582
#SPJ1
The 'Cell theory' states that all living things are made of cells.
Which of the statements below also form part of the 'cell theory'?
A. Cells come from pre-existing cells.
B. Cells are surrounded by a cell wall.
C. Cells have a nucleus.
.D. Cells contain proteins.
The cell theory also states that cells come from pre-existing cells, the answer is option A.
What is the cell theory?The cell theory of life according to Theodor Schwann, states three components which include:
All living things are composed of one or more than one cellsThe basic unit of an organism's structure and organization is the cellCells emerge from pre-existing cellsCells are the units and building block of every living organism on their own and contain genetic information encodings. They have energy flowing through them and are usually composed of the same chemicals.
Find out more on cell theory here: https://brainly.com/question/3142190
#SPJ1
experiments performed on the bridled goby in coral reefs and on song sparrows on mandarte island support the hypothesis that density-dependent effects can cause logistic population growth. what conclusions can be drawn from logistic growth models?
When the population density is low, people survive more easily and the clutch size grows.
Explain about the clutch size?
According to a theoretical research study, the rising seasonality of resources from the tropics to the poles, either alone or in combination with a decline in predation and breeding season, can account for the latitudinal gradient in clutch size.
In conclusion, nest type, latitude, nestling development, and body size had the greatest effects on clutch size. Latitude, migratory patterns, nestling growth, and nutrition all had a significant impact on the number of broods.
The nature of the link between offspring quality and fitness and offspring quality and number affects these predictions. This anticipated number of children is known as the "ideal clutch size" in animals, particularly birds.
To learn more about clutch size refer to:
https://brainly.com/question/27910807
#SPJ4
When a muscle receives an impulse from the nervous system, it reacts and becomes short and thick. This production of force is called _______.
When a muscle receives an impulse from the nervous system, it reacts and becomes short and thick. This production of force is called muscle contraction.
What is nervous system?Nervous system is defined as the extremely sophisticated area of an animal that communicates messages to and from various regions of its body to coordinate its movements and sensory data. The nerves cylindrical bundles of fibers that emerge from the brain and spinal cord and repeatedly branch to innervate every part of the body are what give the nervous system its name.
Muscle contractions are brought on by an Action Potential that moves from the nerves to the muscles. The neurological system sends a signal, which triggers the onset of muscle contraction. A type of nerve cell called a motor neuron conducts the signal, an impulse known as an action potential.
Thus, when a muscle receives an impulse from the nervous system, it reacts and becomes short and thick. This production of force is called muscle contraction.
To learn more about nervous system, refer to the link below:
https://brainly.com/question/29355295
#SPJ2
large plantations that grow a single species of tree that undergoes intensive cropping are an example of .
large plantations that grow a single species of tree that undergoes intensive cropping are an example of wheat plantation.
What is intensive cropping ?An intensive cropping system is defined as a type of agricultural production system where high inputs of fertilizer, pesticides, labor and capital on a land area being farmed.
For example Wheat , Maize (mechanical harvesting), Soybean (genetic modification), Tomato; These type of Cropping systems has to be evolved based on climate, soil and availability of water and use of available natural resources.
Other factor responsible for this cropping are increase in population has put pressure on land to increase productivity per unit area, unit time and for unit resource used, should provide enough food for the family, fodder for cattle and generate sufficient cash income.
For more details regarding crops, visit
https://brainly.com/question/6747998
#SPJ1
Where do rock formations go when they are subducted?
Group of answer choices below
A. Above the surface
B. Into the ocean
C. Into the mantle
D. To the core
Rock formations go into the mantle after being subducted, option C.
What is Subduction?Subduction is the geological process of recycling rocks from the oceanic lithosphere into the Earth's mantle where two or more lithospheric plates collide known as convergent boundaries. The heavier plate dives beneath the other plate into the mantle where the tectonic plate converged between the oceanic lithosphere and a less dense lithosphere.
Sedimentary and metaphoric rocks that plunge deep during subduction ultimately melts to form magma then cools off into igneous rock. This entire process is known as the rock cycle which takes millions of years to complete.
Find out more on subduction here: https://brainly.com/question/1358208
#SPJ1
What do we call the unlearned, involuntary responses that occur automatically in the presence of certain stimuli?.
Question 1 (Multiple Choice Worth 4 points)
(02.06 MC)
Which statement correctly describes the process of photosynthesis?
O Photosynthesis converts water and oxygen into carbon dioxide and carbohydrates.
O Photosynthesis converts carbon dioxide gas and carbohydrates into water and oxygen.
O Photosynthesis converts oxygen and carbon dioxide gas into water and carbohydrates.
O Photosynthesis converts water and carbon dioxide gas into oxygen gas and carbohydrates.
Answer:
(d) Photosynthesis converts water and carbon dioxide gas into oxygen gas and carbohydrates
Explanation:
You want to describe the process of photosynthesis.
PhotosynthesisPhotosynthesis is the process of synthesizing the materials a plant needs for growth and reproduction from light energy and the raw materials water and carbon dioxide. The end products of the process are carbohydrates (glucose) and oxygen.
In short, ...
Photosynthesis converts water and carbon dioxide gas into oxygen gas and carbohydrates.
how does external respiration differ from internal respiration? question 24 options: external respiration refers to gas exchange, regardless of its location, whereas internal respiration refers to the cellular process that metabolizes glucose and results in the production of atp. external respiration involves gills, whereas internal respiration involves lungs. external respiration refers to gas exchange between inhaled air and blood, whereas internal respiration refers to gas exchange between the blood and tissue fluids. internal respiration refers to gas exchange between inhaled air and blood, whereas external respiration refers to gas exchange between the blood and tissue fluids.
External respiration refers to gas exchange, regardless of its location, whereas Internal respiration refers to the cellular process that metabolizes glucose and results in the production of atp.
What is respiration?Respiration is the transport of oxygen from the outside environment to cells within tissues, as well as the removal of carbon dioxide in the reverse direction. It is a biological process that occurs within living creatures' cells. The chemical process through which organic substances release energy is known as respiration. Exergonic reactions transform the molecules into new ones. There are two forms of respiration: aerobic and anaerobic. Aerobic respiration consumes oxygen and produces a lot of energy. We can breathe because of our lungs and respiratory system. They transport oxygen into our bodies (this is known as inspiration or inhalation) and expel carbon dioxide (called expiration, or exhalation). Respiration is the exchange of oxygen and carbon dioxide.
To know more about respiration,
https://brainly.com/question/18024346
#SPJ4
When did carbon dioxide in the atmosphere reach 415 ppm and thus well exceed its natural range of 180 to 280 ppm?.
In 2013, the global carbon dioxide concentration peaked at over 400 parts per million and thus well exceed its natural range of 180 to 280 ppm.
What is the keeling curve?
The Keeling curve, provided by the Scripps Institution of Oceanography, gives the daily reading of atmospheric carbon dioxide, in parts per million (ppm), measured at the top of Mauna Loa, Hawaii.
Carbon dioxide is considered to be the 'global climate thermostat' for planet earth and is a greenhouse gas that is transparent to incoming solar radiation, absorbing outgoing infrared radiation the earth is giving off as the surface cools.
By adding more carbon dioxide to the atmosphere, people are supercharging the natural greenhouse effect, causing global temperatures to rise. Increased carbon dioxide concentration may affect plant transpiration by causing stomatal apertures to close and decreasing the leaf conductance for water vaporTropical ecosystems are predicted to be especially sensitive to global warming because many tropical species appear to have a narrow thermal tolerance range.Co2 is the most important man-made greenhouse gas, which acts like a blanket trapping heat near the surface of the earth. Hence increase in carbondioxide concentration mostly causes the greenhouse effect.
Learn more about the effects of increasing co2 from the link given below:
https://brainly.com/question/23215015?utm_source=android&utm_medium=share&utm_campaign=question
#SPJ4
What is the difference in the concentration of molecules in two areas across a membrane.
The difference in the concentration of molecules in two areas across a membrane is concentration gradient.
In the field of science, concentration gradient can be described as a term that is used when there is a difference in the number of molecules inside and outside the membrane. Due to this difference, molecules either pass into a cell or outside of a cell.
When the concentration of a molecule is higher outside a cell as compared to the inside of a cell, a concentration gradient will develop. As a result of this concentration gradient, molecules will move into the cell.
To learn more about concentration gradient, click here:
https://brainly.com/question/13814995
#SPJ4
Epinephrine, also known as adrenaline, is responsible for the ________ response.
Epinephrine which is also known as adrenaline, is responsible for the fight-or-flight response.
What is adrenaline?Adrenaline (epinephrine) is a hormone produced by the adrenal glands to prepare the body for stressful or dangerous situations. Adrenaline rush refers to the rapid release of adrenaline into the bloodstream. This prepares the body for a "fight or flight" response. Because most people are sometimes exposed to stressful situations, they are familiar with the typical symptoms of an adrenaline rush, such as: Rapid heartbeat, high blood pressure, anxiety, excessive sweating, heart palpitations.
The fight-or-flight response is an automatic physiological response to stressful or frightening events. Perceiving a threat activates the sympathetic nervous system, triggering an acute stress response that prepares for fight or flee.
To know more about adrenaline visit:
https://brainly.com/question/6696170
#SPJ4
______ synthesis begins at a site within a chromosome called the origin of replication.
DNA a chromosome's starting point for synthesis is where replication begins.
What do you mean by DNA replication?When a cell divides, it is essential that each daughter cell receives an exact copy of the DNA. DNA replication happens during the synthesis phase, also referred to as the S phase, of the cell cycle, which comes before the cell enters mitosis or meiosis.
The elucidation of the structure of the double helix gave a hint of how DNA is copied. Recall that cytosine and guanine pair while adenine and thymine couple. The two threads complement one another so well. For instance, a DNA strand with the nucleotide sequence AGTCATA will have a complementary DNA strand with the nucleotide sequence TCAGTACT.
To know more about DNA replication, visit:
brainly.com/question/16464230
#SPJ4
A ___ is a type of leukocyte that surrounds and kills invading cells. This type of cell also removes dead cells and stimulates the action of other immune cells.
A macrophage is a type of leukocyte that surrounds and kills invading cells. This cell type also removes dead cells as well as stimulates the action of other immune cells.
Leukocytes are the white blood cells present inside the body. These are synthesized in the bone marrow of the bones. The cells may be present in blood as well as the lymph fluid. The most important function of leukocytes is to help in maintaining and increasing the immunity of the body by fighting the foreign invaders.
Immunity is the ability of the body to protect itself by fighting with the foreign invaders like bacteria, viruses etc. More healthy and disease-free an organism is, more is his immunity.
To know more about immunity, here
brainly.com/question/19975865
#SPJ4
joe has a serious lung infection, probably atypical pneumonia. a sputum sample was taken. the lab technician stated that the lab isolated a bacterium that did not have any peptidoglycan and was highly pleomorphic. you hypothesize that the identity of this microbe could possibly be .
Joe has mycoplasma pneumonia that is a special characteristic of genus that did not have any peptidoglycan.
What is pneumonia?Pneumonia can be caused by viruses that invade your lungs and airways. The most prevalent causes of viral pneumonia in adults are the flu (influenza virus) and the common cold (rhinovirus). The most prevalent cause of viral pneumonia in young infants is respiratory syncytial virus (RSV). Although most patients with pneumonia react favorably to therapy, pneumonia can be extremely dangerous and even fatal. Complications are more likely if you are an older adult, a very young child, have a weakened immune system, or have a serious medical condition such as diabetes or cirrhosis.
To know more about pneumonia,
https://brainly.com/question/16903358
#SPJ4
HELP PLEASE DUE TOMORROW
50 POINTSSSSS Pt 1
Answer:
Explanation:
1.hydrologic cycle
2. dew point
3. True
4. Cloud droplets from
5. Encounter Mountains
Answer:
the water cycle, dew point, true, cloud droplets form, encounter mountains
Explanation:
Which statement best describes the role of animals in the water and carbon cycles? (3 points) Group of answer choices Animals release carbon dioxide and water vapor as a by-product of cellular respiration. Animals release carbon dioxide and water vapor as a by-product of photosynthesis. Animals take in carbon dioxide and oxygen during cellular respiration. Animals use oxygen to perform photosynthesis and release carbon dioxide as a by-product.
The correct statement from above which describes the role of animals in the water and carbon cycles is:
animals use oxygen to perform photosynthesis and release carbon dioxide as a by‐product.
The correct option is d.
What is meant by the carbon cycle?Carbon cycle simply refers to series of processes which involves the continual movement of carbon atoms from the atmosphere to the earth and from the earth back to the atmosphere.
From the task given above, carbon dioxide which is cycle to the atmosphere is as a result of being exhaled by animals and oxygen is a by product of photosynthesis.
In conclusion, we can now confirm perfect deduce from the explanation simple above that the movement of carbon from the earth to the atmosphere and back to the earth is very important to well being of animals.
Read more on carbon cycle:
https://brainly.com/question/25845923
#SPJ1
what may be an ecological implication of global warming?
Global warming can cause a rise in sea level, leading to the loss of coastal land, a change in precipitation patterns, increased risks of droughts and floods, and threats to biodiversity.
Ecological effects may includes Climate change where species live, interact. It can also effect the timing of biological events, which could literally transform ecosystems and food webs.
Climate change can also alter the capacity of ecosystems to temper extreme events and disturbance, such as wildfires, floods, and drought. Their can also be a chance of and intense drought, storms, heat waves, rising sea levels, melting glaciers and warming oceans .
To learn more about Global warming , here
brainly.com/question/12908180
#SPJ4
Which factors make sequencing by the sanger chain-termination method possible? select all that apply.
Gel electrophoresis can be used to differentiate the sizes of duplex nucleic acid molecules. A duplex molecule can be created by joining complementary separate nucleic acid sequences.
What is duplex RNA or DNA?The duplex structure supports the Watson-Crick base pairing model for GNA containing antiparallel strands. The right-handed helical ribbon that is wrapped around the helix axis to create a big hollow core is how one can define the duplex secondary structure, which is different from the canonical A- & B-form nucleic acids.
How are RNA duplexes created?One of the most biologic systems is the duplex synthesis of nucleic acids. During replication, RNA primers create a duplex with parental strand of DNA. (1) A brief stretch of duplex must be formed during translation in order to recognize codons against anticodons.
To know more about Duplex nucleic acid visit;
https://brainly.com/question/14147877
#SPJ4
a litter of mice from the mating of two agouti black parents includes offspring with the following fur colors: solid color, black solid color, brown (sometimes called chocolate) agouti black agouti brown (sometimes called cinnamon) what would be the expected frequency of agouti brown offspring in the litter?
The frequency of the offspring being agouti brown is 3/9.
Here, it is given that both of the parents are agouti black. The children might be of four types of colors - agouti black (AaBB), agouti brown (AaBb), solid black (AABB), and solid brown (AABb). We also know that the color black is dominant over brown. Agouti is dominant over a solid color.
The phenotypes of the offspring are going to be - (AABB, AABb, AAbb, AaBB, AaBb, Aabb, aaBB, aaBb, aabb)
Here, we see that the agouti brown type comes three times i.e., AAbb, Aabb, aabb.
This means that three of the nine progeny are going to be agouti brown in color.
Learn to know more about Genetics on
https://brainly.com/question/12985618?referrer=searchResults
#SPJ4
Where do subduction zones often occur? question 6 options: where a continental plate is being split into two parts where an oceanic plate is moving toward a continental plate where two oceanic plates are moving away from each other where two continental plates are colliding
Subduction zones occur at places where two continental plates are colliding.
Subduction zones can be found in places like deep oceanic trenches, lines of volcanoes parallel to the trenches, and zones of large earthquakes that extend from the trenches landward. The collision of the continental plates happen due to their differences in density and force of gravity.
Continental plates are also called the tectonic plates. These are the large pieces of the earth that move separately. These plates are made up of granitic rocks which are made up of relatively lightweight minerals such as quartz and feldspar. The cooling of magma forms the tectonic plates.
To know more about continental plates, here
brainly.com/question/12596531
#SPJ4
Any molecule within a cell that has a uracil group will also contain __________.
Any molecule within a cell that has a uracil group will also contain a ribose. So the correct choice is D. ribose.
What is a ribose?Ribose is a macromolecule that is part of nucleic acids. Ribose will be one of the bases that will form ribonucleic acids. Ribose will also be part of nucleotides that are not nucleic like ATP, which is one of the most important molecules for metabolism since it provides energy for most of the body's reactions. These riboses will be linked to a phosphate group and a nitrogenous base.
In riboses the thiamine base will not be used, for this reason the uracils will be used instead of this.
Therefore, we can confirm that any molecule within a cell that has a uracil group will also contain a ribose. So the correct option is D. ribose.
To learn more about ribose visit: https://brainly.com/question/2098027
Any molecule within a cell that has a uracil group will also contain __________.
A. deoxyribose
B. glycerol
C. glucose
D. ribose
#SPJ1
What two significant proteins of the muscles are involved in the contraction and relaxation of your muscles?.
Consider the tall/short traits of pea plants. A pea plant that carries two tall alleles is?.
A pea plant that carries two high alleles is called a homozygous.
Homozygous and heterozygous alleles:If there are two identical alleles at the same genetic locus, the genotype of the gene is considered homozygous, and will usually produce a very clear phenotypic response in the body. However, if the two alleles are not the same, the genotype is called heterozygous, which is where things can get a little more complicated.
In the heterozygous situation, one allele may be dominant, while the other is recessive; in this case, the dominant allele will be expressed (e.g., brown eyes – dominant trait). In a homozygous situation where both alleles are dominant, the dominant trait will emerge. In a homozygous situation, where both alleles are recessive, the recessive trait will be phenotypically expressed (i.e., blue eyes – recessive trait).
Learn more about homozygous and heterozygous alleles here https://brainly.com/question/15248613
#SPJ4
If a cell is no longer able to differentiate into any type of tissue, it has become ________.
If a cell is no longer able to differentiate into any type of tissue, it has become a differentiated cell.
A stem cell can differentiate into a different kind through cellular differentiation. Usually, the cell will transform into a new, more specialized type. As a multicellular organism develops from a simple zygote to a complex system of tissues and cell types, it passes through multiple differentiation cycles. Adult stem cells continue to grow when they divide into fully differentiated daughter cells during tissue repair and regular cell turnover. Immune reactions to an antigen lead to differentiation. A cell's size, shape, membrane potential, metabolic activity, and signal receptivity all vary dramatically during differentiation.
Learn more about differentiated cells at
brainly.com/question/18546772
#SPJ4
A particular species of plants can have yellow or green seeds. This trait is determined by one gene. The yellow-seeded plants might be homozygous or heterozygous. We could find out which by crossing these plants with.
By true breeding green-seeded plants a particular species of plants can have yellow or green seeds.
What do you mean by true breeding?A true breeding is a form of reproduction in which the parents' offspring have the same phenotype. In other words, both parents have the same genetic makeup. The Aberdeen Angus breed of cattle is an illustration of real breeding. The fact that the cattle have been black for many generations is proof that a trait that has been passed down over many generations is still pure. Another illustration is when two dogs of the same breed mate. As a result, the characteristics of the children would be more predictable.
However, true breeding implies a small gene pool. As a result, there is a high likelihood that a certain trait will be inherited (such as genetic illnesses), which may have a negative impact on the offspring's health.
To know more about true breeding, visit:
https://brainly.com/question/1345577
#SPJ4
Protons moving across the thylakoid membrane participate in atp production by _______________________________________.
Protons moving across the thylakoid membrane participate in atp production by moving through ATP synthase and providing free energy.
What is meant by thylakoid ?A disk-shaped, membrane sac that contains chlorophyll and is present in the chloroplasts of green plants and blue-green algae. It is here that the light response of photosynthesis takes place.
Chloroplasts and cyanobacteria contain membrane-bound compartments called thylakoids. They serve as the location of the photosynthetic reactions that depend on light. In thylakoids, a thylakoid lumen is encircled by a thylakoid membrane.
Grana are stacks of stacked thylakoids (singular: granum). Each chloroplast has a large number of grana. Lamellae, which are protrusions of the thylakoid membrane and lumen, connect several grana. Usually, 40–60 stacked thylakoid discs make up a granum.
Thylakoids' primary jobs involve capturing light energy and converting it into the chemical energy molecules ATP and NADPH. As a result of this procedure, oxygen and water released.
To learn more about thylakoid refer to:
https://brainly.com/question/4976370
#SPJ4
the would show abnormal results if there were red blood cells in the urine, unless it was due to menstruation.
The condition of finding blood cells in the urine is called hematuria and some of them are caused by bacterial infections.
In hematuria, the kidneys or other parts of the urinary tract are disturbed so that blood cells mix with urine.
The following are some of the causes of hematuria
1. Urinary tract infection, occurs because bacteria enter the body through the urethra and multiply in the bladder
2. Kidney infection, occurs when bacteria enter the kidney from the bloodstream
3. Kidney stones, occurs when minerals in the urine form crystals in the walls of the kidneys or bladder that cause blockage
4. Side effects of drugs, some drugs such as anti-cancer drugs can cause bleeding in the urinary tract.
Learn more about hematuria at:
https://brainly.com/question/24266425?referrer=searchResults
#SPJ4
Which of the following DOES NOT OCCUR
in Prophase (which includes
prometaphase)?
the nuclear membrane starts to break
down and desintegrates
chromosomes line up at the equator of the
cell
the chromatin condenses into
chromosomes
the centrioles form spindle fibers
spindle fibers attach to the kinetochore of
the chromosomes
Answer:
Chromosomes line up at thr equator of the cell.
Explanation:
Chromosomes line up at thr equator of the cell occurs in metaphase. So, it aint occur in prophase
Skeletal muscles have a reserve of direct atp to sustain contraction. Using the atp reserve only, how long can intense exercise occur?.
Intense exercise can be performed using ATP reserves from skeletal muscles for 3-5 seconds.
ATP or Adenosine Tri Phosphate is the main source of energy for muscle contraction and ATP comes from the oxidation of carbohydrates and fats by breaking down phosphoerectin and glycogen. ATP reserves can be used optimally within 3-5 seconds, while ATP recovery takes 3-5 minutes.
The mechanism of muscle contraction begins when a signal is sent from the nervous system to the cells in the muscle. Signals start from motor neurons to neuromuscular which are ordered by the brain when they want to do something that requires muscle movement. And the breakdown of ATP will release energy which can cause myosin to be able to pull on actin and also shorten the muscle.
Learn more about muscle contraction at:
https://brainly.com/question/14907458?referrer=searchResults
#SPJ4