The electromagnetic spectrum consists of :
Gamma radiation.X-ray radiation.Ultraviolet radiation.Visible light.Infrared radiation.Microwave radiation.Radio waves.What is the electromagnetic spectrum?
The electromagnetic (EM) spectrum is the range of all types of EM radiation.
What is the use of the electromagnetic spectrum?
Electromagnetic waves have a vast range of practical everyday applications that includes such diverse uses as communication by cell phone and radio broadcasting, WiFi, cooking, vision, medical imaging, and treating cancer.
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Which example displays a type of point source pollution?
• A.
rainwater carrying toxic chemicals and debris to a river
B.
melted snow mixed with debris flowing into a city
C.
untreated water from a factory flowing into a lake
D.
smoke released by trucks
E
rainwater mixing with garbage on the sidewalks of a street
The example displaying a type of point source pollution is: (C) untreated water from a factory flowing into a lake
Pollution is the presence of contaminants in the environment. The pollution can be of air, soil, water, or even noise. The major cause of pollution is the human action and synthetic substances but some natural products can also be the causing agent of pollution.
Point source pollution is the one spread through one single source like pipe, ship or factory smokestack that pollutes a larger area. Like untreated water from factories can pollute the entire water body. Similarly chimney smoke of industries can pollute the air of whole city.
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5. A man with group A blood marries a woman with group B blood. Their child has
group O blood. What are the genotypes of these individuals? What other
genotypes and in what frequencies, would you expect in offspring from this
marriage.
If a child with blood group O is born to the parents with blood group A of father and B of mother, then their genotype will be [tex]I^{A} I^{i}[/tex] and [tex]I^{B} I^{i}[/tex] respectively.
Blood group is the type antibodies and antigens present in the blood of the individual. These antibodies and antigens are heritable and transferred from the parent to the child in the form of genes. There are 4 types of blood groups. These are: A, B, AB and O.
Genotype is the genetic composition of an individual. It can off the whole genome or for a single trait. When the genotype [tex]I^{A} I^{i}[/tex] and [tex]I^{B} I^{i}[/tex] are crossed they have the potential to give birth to a child with genotype [tex]I^{i} I^{i}[/tex], and this justifies the birth of child with blood group O.
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the process of oxygen depletion due to nutrients such as nitrogen and phosphorous entering marine systems and causing algal blooms is called _______.
Answer:
the process of oxygen depletion due to nutrients such as nitrogen and phosphorous entering marine systems and causing algal blooms is called Eutrophication
Eutrophication is the oxygen depletion process that occurs due to nutrients such as nitrogen and phosphorus in the marine system resulting in algal blooms.
Eutrophication is a main problem in the aquatic ecosystem. It occurs when the lake or estuaries are rich in nutrients like nitrogen and phosphorus.
The deposition of these nutrients in water bodies occurs because of the surface runoff of agricultural lands.
These nutrients are required by microorganisms, phytoplankton, and algae for their growth. So they consume these nutrients and grow enormously and cover the lake as a green meadow or algal bloom.
So the sunlight or oxygen can't reach underwater. As a result, the aquatic organisms begin to die.
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Temperature below the freezing point of water
As a result of an action potential, AcH is released from the axon terminal and attaches to receptors on the motor end plate. Sodium rushes in the T-tubules and all the steps occur until the muscle contracts in the leg and carry out the command transported by the motor neuron. Which gray horn is the cell body of the motor neuron located? Infer and explain if this is a positive or negative feedback
Acetylcholine (ACh), a chemical transmitter, is released into the synaptic cleft. ACh diffuses through the postsynaptic or post junctional membrane and binds to specific receptors there.
What is chemical transmitter?Chemical transmitter is defined as a signaling substance that a neuron secretes in order to influence another cell across a synapse. Typically, a transmitter transforms the sensor's output into a signal level fit for a controller's input.
Exercise causes the skeletal muscles to contract and alter. Acetylcholine, a neurotransmitter, is produced from nerve endings and binds to receptors called AChRs on the surface of muscles in (A). Sodium channels activate as a result of the subsequent depolarization, triggering an action potential that travels throughout the cell.
Thus, Acetylcholine (ACh), a chemical transmitter, is released into the synaptic cleft. ACh diffuses through the postsynaptic or post junctional membrane and binds to specific receptors there.
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The Biomes of Bolivia and the world
The Biomes of Bolivia and the world
Biomes are characterized by grouping ecosystems with similar characteristics, in climate, fauna, flora and soil.
¿What is the Biomes of Bolivia and the world?
For Biomes are characterized by grouping ecosystems with similar characteristics, in climate, fauna, flora and soil.
Select all that apply.
Proteins____
A. contain carbon, hydrogen, oxygen, and nitrogen.
B. consist of amino acids
C. are derived from fruits and vegetables
D. are part of antibodies
Answer: the answer is option are option B and C.
Explanation: Proteins are made up of bulk units of amino acids progressively in our body, which are connected to each other as one long chain.
there are 20 different amino acids that compose the proteins, they can be derived from fruits and vegetables.
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Can translation still occur without the start codon?
functions of the liver include:______.
FUNCTIONS OF LIVER
Blood reservoir: As liver is expandable organ, large quantities of blood can be stored in its blood vessels. Storage of extra blood occurs especially in cases of cardiac fallen with peripheral congestion.Liver's macrophage system serves a blood cleansing function: Muffler cells are large phagocytic macrophage that line the hepatic solid, efficiently cleanser blood as it passes through hepatic venous sinuses.Carbohydrate Metabolism:Storage of large amount of glycogenConversion of galactose and fructose to glucoseGluconeogenesisFormation of many chemical compounds form intermediate products of carbohydrates metabolism.Glucose buffer (Maintaining normal blood glucose concentrationFat Metabolism:Oxidation of fatty acid to supply energy for other body functionsSynthesis of large quantities of cholesterol, phospholipid and most lipoproteinSynthesis of fatty from protein and carbohydratesProtein Metabolism:Deamination of amino acidFormation of urea for removal of ammonia from the body fluidsFormation of plasma proteinsInterconversion of various amino acids and synthesis of other compounds from amino acids.Storage storage for vitamins: Vitamin A, Vitamin D & Vitamin B12Stored iron as ferritinForms blood distances used in coagulation: Fibrinogen, prothrombin, accelerator globulin, factor VII and several other important factors.Removes or excretes Drugs, Hormones and Other substancesBile section: 600-1000 mL/day
13) Atoms bond with other atoms when they need to fill their shell
Atoms bond with other atoms when they need to fill their shell is true .
What is atom ?When two atoms share a pair of electrons, covalent bonding results. In order to increase their stability, which is attained by forming a complete electron shell, atoms will covalently connect with one another. Atoms can stabilize themselves by filling up their outer electron shell by sharing their outermost (valence) electrons.
Atoms, which are very little particles of matter, are what define a chemical element specifically. The core nucleus of an atom is surrounded by one or more negatively charged electrons.
ATOM BOND :Whatever atoms the shared electrons originally belonged to or how many electrons are involved, a bond is simply the sharing of electrons between two or more atoms to satisfy their demand for an unoccupied final shell.
Hence, your statement about atom is True .
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What are the three main differences between DNA and RNA?
Answer:
The three main differences between DNA and RNA are:
-DNA is double-stranded, while RNA is single-stranded
-DNA is made up of deoxyribonucleotides, while RNA is made up of ribonucleotides
-DNA contains the sugar deoxyribose, while RNA contains the sugar ribose
Explanation:
The three main differences are :
1.RNA contains uracil while DNA contains thymine
2.RNA has sugar ribose while DNA has deoxyribose.
3.RNA is single stranded while DNA is double stranded .
What is the structure and function of DNA?
The organic components known as nucleic acids can be found in the form of DNA or RNA in all living things. These nitrogenous bases, sugar molecules, and phosphate groups are joined by various bonds in a series of sequences to form these nucleic acids. The fundamental genetic make-up of our body is defined by the DNA structure. In actuality, it describes the genetic composition of almost all life on earth. This holds true for viruses as well because the majority of these organisms have either RNA or DNA as part of their genetic makeup. As an illustration, some viruses may have DNA as their genetic material, while others may have RNA. RNA is present in the Human Immunodeficiency Virus (HIV), which after attaching to the host cell, transforms into DNA.
So, the DNA is double stranded while RNA is single stranded.
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Kinetic energy depends on
O Heat and pressure
Density and volume
O Mass and speed
Position and height
22:
This usually requires a minimum of four to six sentences per question, though questions with multiple parts may require a longer answer in order to be complete. The response may source the textbook or another credible source (with citation) to justify their answer (at least two reference).
What is PCR and it’s steps? Briefly explain the steps.
What do you need to add to your PCR tube?
What are some of the advantages of PCR? Name 2 and explain.
What do the bands in the agarose gel represent? List two factors affect the rate of DNA migration within the agarose gel.
PCR is a polymerase chain reaction and involves denaturation, annealing, and extension. PCR tube includes primers, DNA, Taq polymerase and water. The main advantages of PCR are the versatility to obtain a given DNA sequence amplified and bands in the agarose gel represent different samples.
What is the Polymerase Chain Reaction?The Polymerase Chain Reaction or PCR is a technique widely used in molecular biology labs to amplify a given DNA sequence lesser than 1,300 base pairs, which involves successive cycles of denaturation to separate both DNA strands, annealing using oligonucleotides called primers and then the extension of the DNA sequence.
Therefore, with this data, we can see that the Polymerase chain Reaction or PCR is a versatile technique to obtain genetic information of a given sample by using an agarose gel that separates samples after PCR by electrophoresis.
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Which describes a substance that is
pure and made of only one type of
atom throughout?
A. compound
B. molecule
C. isotope
D. element this
Answer:
element
Explanation:
An element is a substance that consists of only one type or kind of atom. An element is a pure substance as it cannot be broken down or transformed into a new substance even by using some physical or chemical means.
Answer:
d) Elements
Explanation:
An element is a substance that is pure and made of only one type of atom throughout. Hence, the option (d) is correct answer.
Directional Terms Please Im not good at biology could anyone help me pls?
Answer: c
Explanation:
cause
digestion of fatty acids takes place in which organelle?
Digestion of fatty acids takes place in the peroxisome.
Put the following events of translational elongation (the stage in translation that occurs after initiation) in the order that they occur, beginning with the first step at the top.
1. The ribosome moves down the mRNA by one codon, and a tRNA carrying the third amino acid comes into place.
2. After the first amino acid has been brought to the ribosome, a tRNA carrying the second amino acid of a protein binds to the second codon.
3. A covalent bond forms between the first and second amino acids.
4. The ribosome releases the first tRNA.
5. The ribosome releases the second tRNA.
6. A covalent bond forms between the second and third amino acids.
The following events of translational elongation (the stage in translation that occurs after initiation) in the order that they occur, beginning with the first step at the top. A covalent bond forms between the first and second amino acids.
At some stage in translation elongation, the ribosome ratchets along its mRNA template, incorporating each new amino acid and translocating from one codon to the next. The elongation cycle requires dramatic structural rearrangements of the ribosome.may additionally nine, 2014
Translation elongation calls for particular aminoacyl TRNAs being escorted to the ribosome with the aid of GTP-coupled elongation factor. Elongation calls for movement alongside the ribosome-coupled mRNA, three nucleotides at a time to add amino acids which have been certain to TRNAs.
In the elongation step, the extending of the amino acid sequences and the formation of the amino acid chain is formed. This step is one of the primary and larger steps in translation wherein some of amino acids are delivered to the chain and related collectively with the aid of peptide bonds to form polypeptide bonds.
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List and explain FIVE (5) uses of the beta-amylase enzyme.
The FIVE (5) uses of the beta-amylase enzyme include;
.β-Amylase is used in the mashing and brewing process. It produces enough maltose, which is the most important fermentable sugar.
.It is used in the production of malt and beer as an additive in foodstuff.β-Amylase at controlled temperature breaks down starch into maltose, dextrins, oligosaccharides, and glucose molecules.
.β-Amylase is utilized in the production of maltose-rich syrup.
.It is used as a sweetener in food and pharmaceuticals due to its mild sweetness and lack of color formation.
. β-Amylases also slow down starch retrogradation, thus maintaining the quality of bread and preventing it from drying.
What is a β-Amylase enzyme?
This enzyme speeds up the hydrolysis of the second α-1,4 glycosidic bond, cleaving off two glucose units (maltose) at a time acts . They act on starch, glycogen, and other polysaccharides and oligosaccharides to give tt-maltose by an inversion.
Beta-amylase can be seen in bacteria, fungi, plants, bacteria, and cereals. During the ripening of fruit, β-amylase disintegrates starch into maltose, giving rise to the sweet flavor of ripe fruit.
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A certain type of specialized cell contains an unusually large amount of rough endoplasmic reticulum (ER). Which of the following functions is this cell type most likely specialized to perform?
A. The production and secretion of steroids
B. The destruction of toxic materials produced in other cells of the organism
C. The synthesis of polysaccharides for energy storage
D. The production and secretion of proteins
A certain type of specialized cell contains an unusually large amount of rough endoplasmic reticulum (ER). Which of the following functions is this cell type most likely specialized to perform?
A. The production and secretion of steroids
B. The destruction of toxic materials produced in other cells of the organism
C. The synthesis of polysaccharides for energy storage
D. The production and secretion of proteins
Hope this helps :)
which animal is most closely related to humans?
Chimpanzees are the animal most closely related to humans.
Ever since researchers sequenced the chimp genome in 2005, they have known that humans share about 99% of our DNA with chimpanzees, making them our closest living relatives.
How are humans related to chimpanzees?
Ever since researchers sequenced the chimp genome in 2005, they have known that humans share about 99% of our DNA with chimpanzees, making them our closest living relatives.
Are chimpanzees basically humans?
Chimpanzees are genetically closest to humans, and in fact, chimpanzees share about 98.6% of our DNA.
Thus, chimpanzees are most closely related to humans.
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Which rate of evolution BEST describes a fossil record that shows many different forms of the same organism over a long period of time?
Sedimentary rocks and fossils are the best evolution rate that describes a fossil record from many different forms of the same organism over a long period of time.
The highly organized order in which fossils are discovered in sedimentary rock layers is known as the fossil record.
It suggests that at least 3.5 billion years ago, there were living forms on Earth.
Fossils, which also show how different species evolved, provide undeniable evidence that ancient organisms were unique from those that exist now. The comparative anatomy of modern animals and fossils make up the morphological, or anatomical, record.
what is sedimentary rocks?
Sedimentary rocks are constructed from pre-existing rocks or remains of extinct creatures. They emerge from deposits that amass on the Earth's surface. Identifiable bedding or layering is typically present in sedimentary rocks.
Therefore, Sedimentary rocks and fossils are the best evolution rate that describes a fossil record from many different forms of the same organism over a long period of time.
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Lollllllllllllolololololol HELPP
Answer: Chlorophyll
Explanation:
Chlorophyll's job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules. Through photosynthesis, the plant uses the stored energy to convert carbon dioxide(absorbed from the air) and water into glucose, a type of sugar.
what is the location of most of the organelles and where most of the cell processes take place?
The Cytoplasm is the location of the most organelles where most cell processes take place.
Answer:
the cytoplasm
Explanation:
What other component does nuclear power utilize in order to
create electricity?
a Air
b Water
c Mercury
d None of the Above
Answer:
Explanation: The answer would be water because , nuclear power plant would heat the water so that it could produce steam .
Which of these processes is required for a reaction but not for a reflex?
motor neuron
interneuron
sensory receptor
integration in the cerebrum
Answer:
integration in the cerebrum
Explanation:
this is because the reflex arc, which controls the reflex action,occurs in the spinal cord.The ascending neuron only picks the information to inform the brain of what has happened, after it has actually happened
Which of the answer choices is an example of negative feedback altering homeostatic control?
a. A person with a bacterial infection runs a fever and his body temperatures rises and stays elevated for several days.
b. The concentration of salt in a person's urine increases after that person eats a large bag of salty chips.
c. A person's heart rate remains elevated over the course of a long run.
d. The production of oxytocin (a hormone) increases in a pregnant woman's body as oxytocin levels in her body rise.
A negative feedback altering homeostatic control is option B: The concentration of salt in a person's urine increases after that person eats a large bag of salty chips.
The ability of the body to maintain its normal state in the face of changes in the external environment is known as homeostasis. The ion concentration can be controlled via homeostasis. The desire to excrete salt through urine also grows as the body absorbs salt from eating chips. Therefore, negative feedback loops that change homeostasis are used to maintain the salt's ionic concentration. Therefore, option B marks the correct choice.
The inclusion of negative feedback loops helps to maintain homeostasis. These loops behave in the opposite direction from the stimuli that causes them. If the body temperature is high, for instance, the negative feedback loop will work to lower it toward the set point, or the desired value.
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In a particular strain of mice. Fur coat color is either black or brown, where black
(B) is dominant to brown (b). A homozygous dominant mouse mates a mouse with
brown fur.
What are the genotypes of the two individuals?
What proportion of their offspring will have black fur?
BB or Bb is the genotype of the two individuals. More than 90% proportion of their offspring will have black fur.
Black mice must have at least one B allele since the color is dominant. Either BB or Bb could be their genotype.
Because every offspring will have at least one dominant allele for black fur, which will outweigh any allele for brown fur, it is expected that all offspring will have black fur, so the proportion will be more than 90%.
The mix of genes found in the sex cells or gametes (ova and sperm) that were used in a child's conception determines the genotype of that child. From each parent came one sex cell. The gene for each attribute is often only present in one copy in sex cells.
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During adolescence, adrenal glands will mature via a process known as what?
Answer: Adrenarche
Explanation:
Which of the following is
true about bacteria?
A. They lack DNA.
B. They are single-celled organisms.this
C. They have membrane-bound organelles.
D. They are eukaryotes.
Cell membranes are made mostly of _____.
Group of answer choices
A. oxygen
B. phospholipids
C. sugar
D. water
Answer:
B. phospholipids
Answer: Phospholipids
Explanation: Phospholipids are a major component of cell membranes. It's also known as a lipid bilayer.