Answer:
A single nucleotide polymorphism (change) exists between the two sequences.
Explanation:
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Single-celled prokaryotes that are classified by their ability to survive extreme conditions are.
A site on an enzyme other than the active site that can bind molecules and influence the shape of the active site is referred to as a(n)
A site on an enzyme other than the active site that can bind molecules and influence the shape of the active site is referred to as an allosteric site.
What is an allosteric site?An allosteric site is a site on an enzyme other than the active site that can bind molecules and influence the shape of the active site.
Enzymes that have an allosteric site are known as an allosteric enzyme.
Allosteric sites serves as a regulatory point for enzyme activity.
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What is the difference between epidemic and endemic.
Answer:
Epidemic: a widespread occurrence of an infectious disease in a community at a particular time.
Endemic: (of a disease or condition) regularly found among particular people or in a certain area.
Explanation:
Which theory holds that the pitch we hear is determined by the particular location on the cochlea where the hair cells vibrate the most?.
The Place theory holds that the pitch we hear is determined by the particular location on the cochlea where the hair cells vibrate the most. It is a hearing theory.
What is the place theory?The place theory is a model indicating that sound perception depends on where component frequencies produce specific vibrations.
The place theory has into account the vibration in the basilar membrane of the cochlea.
This theory (place theory) can be considered the first step for the interpretation of pitch perception.
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In your own words, explain the process of convection.
Answer:
Convection is a process by which heat is transferred by bulk movements of molecules that are within fluids such as gases and liquids.
Explanation:
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James is researching the advantages of varying beak sizes of four bird species in a local habitat. He records and graphs the data to show how many individuals there are in each species with different sizes of beak. The graph is provided. If all four species of birds are transported to a new habitat with completely new food sources, which species will most likely be able to avoid extinction?
The specie will avoid extinction which have a large amount of food in that environment probably specie B.
Specie that avoid extinctionThat specie will most likely be able to avoid extinction which receives more amount of desired food because food is the main source on which all living organism can survive.
If desired food is not available for the organism, its population size decreases and reaches to the point of extinction so we can conclude that the specie will avoid extinction which have a large amount of food in that environment.
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3. Which of the following is NOT a requirement of populations in Hardy-Weinberg equilibrium?
a. No mutation can occur.
b. Random mating must occur.
C. Small populations are important.
d. Gene flow must not take place.
dna is the nucleuse carries the gentic code for making ribisome in the diagram c is the process by which dna code
Answer:
mRNA
Explanation:
The mRNA interacts with a specialized complex called a ribosome, which "reads" the sequence of mRNA nucleotides. Each sequence of three nucleotides, called a codon, usually codes for one particular amino acid. (Amino acids are the building blocks of proteins
Which of the following best defines sustainable fishing practices? a. Harvesting practices that maximize yields and profits. B. Harvesting practices that maximize the yield per fisherman. C. Harvesting practices that do not reduce the potential for future harvests. D. Harvesting practices that reduce the potential for future harvests. Please select the best answer from the choices provided A B C D.
Answer:
a. harvesting practice that maximize the yield per fisherman
Explanation:
hope it helps
Answer: its B
Explanation: Harvesting practices that maximize the yield per fisherman.
He is right but its B not A
Which statement is correct regarding metamorphic rock formation?
Multiple choice question.
cross out
A)
The temperature inside Earth is cooler which allows metamorphic rocks to form more quickly.
cross out
B)
Small pieces of rocks are buried, squeezed, and cemented together.
cross out
C)
Weathering and erosion cause rocks to break down to form metamorphic rocks.
cross out
D)
The deeper into Earth’s crust, the higher the pressure that forms metamorphic rocks.
Answer:
D is the answer.
Explanation:
The deeper into Earth's crust, the higher the pressure that forms metamorphic rocks.
ASAP Not all genes come in pairs! Your blood type is determined by how many different alleles?
Two alleles determine your blood type, one which comes from mother and another from father.
Answer:
I think it is determined by the DNA and RNA found in couple's body. i.e due to interplay of chromosomes.
How does the shape of an algae cell help it function?
Answer: Microtubules provide a rigid structure, or cytoskeleton. or produce oxygen and consume carbon dioxide
Explanation:
Most cells contain microtubules, which are tubelike structures formed by tubulin proteins. Microtubules appear and disappear as needed in many algae.
What are microtubules?Microtubules are important cytoskeleton components. They are found in all eukaryotic cells and play roles in mitosis, cell motility, intracellular transport, and cell shape maintenance.
Microtubules are made up of alpha- and beta-tubulin subunits that have been assembled into linear protofilaments.
Microtubules, along with intermediate filaments and microfilaments, are components of the cell skeleton that determine cell shape.
Microtubules play a variety of roles, including mitotic spindle assembly in dividing cells and axon extension in neurons.
Microtubules, which are tubelike structures formed by tubulin proteins, are found in the majority of cells. In many algae, microtubules appear and disappear as needed.
Microtubules provide a rigid structure, or cytoskeleton, in the cell that aids in cell shape determination and maintenance, especially in species lacking cell walls.
Thus, this way, the shape of an algae cell help it function.
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When comparing today's animals to the ones
from the Mesozoic era, which is true?
A. All of the animals from the Mesozoic era are extinct.
B. Most of the animals from the Mesozoic era are extinct.
C. Dinosaurs still roam the Earth.
D. All of the animals are still the same.
Answer:
A and B should be the answer if you can pick two, but B is the answer.
Alfred has drawn a flow chart to show a time sequence of four processes of cellular respiration. Which sequence of three labels is the best choice to finish his model?.
The sequence that is the best choice to finish the model is glycolysis >> pyruvate processing >> citric acid cycle. They are steps of cellular respiration.
What is cellular respiration?
Cellular respiration is a series of reactions by which aerobic cells produce ATP (energy) by using the energy from foods and oxygen.
Cellular respiration has three main steps: glycolysis, the citric acid cycle and oxidative phosphorylation.
Glycolysis occurs in the cytoplasm, whereas the acid citric cycle and oxidative phosphorylation occur in the mitochondria.
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7. Individual parts of chromosomes
that determine your traits
Genetic crossword puzzle
______ is a direct result of natural selection ?
A. Increased variation
B. More offspring
C.Adaptation
D. Increased strength
Based on the seismograph measurements in the image, where is the epicenter of this earthquake?
Portland, OR
Salt Lake City, UT
San Francisco, CA
Los Angeles, CA
Answer: C
Explanation: E2022
What is the most common and powerful agent of erosion?
wind
ice
water
animal behavior
Answer:
water ..................
Answer:
Water is correct...
Explanation:
EDGE
Which of the following statements is true regarding how DNA determines a trait such as eye color?
A. DNA interacts with proteins in the mitochondrion to control eye color.
B. DNA codes for mRNA, which then codes for proteins that ultimately determine eye color.
C. DNA directly produces pigments from the nucleus that travel to the retina.
D. DNA codes for rRNA, which creates a ribosome.
Answer:
B
Explanation:
Genes are the messages in our DNA that define individual characteristics. So the manifestation of the product that is coded by the DNA.
Octopuses, mammals, and some jellyfish have eyes that contain a lens for focusing light. Eyes with a lens were not present in the common ancestor of these animals. Is an eye with a lens a synapomorphy or a homoplasy?
Answer:
Synapomorphy !!
Explanation:
An Eye with an lens is specified as a Synapomorphy .
What situation can cause positive population growth?
Answer: immigration rate exceeds emigration rates.
Explanation: immigration means that people are moving into another place, and emigration means that people are leaving a place, usually a country.
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What type of protein fiber, commonly found in the extracellular matrix, is extensible?.
Answer:
There are two main types of fibre; collagen, and elastin and fibronectin.
There are two main types of fibre- collagen, and elastin and fibronectin are commonly found in extracellular matrix.
What are the functions of extracellular matrix?A large network of proteins and other molecules that surround, support, and give structure to cells and tissues in the body. The extracellular matrix helps cells attach to, and communicate with, nearby cells.
The extracellular matrix (ECM) is the non-cellular component present within all tissues and organs, and provides not only essential physical scaffolding for the cellular constituents but also initiates crucial biochemical and biomechanical.
The extracellular matrix helps cells attach to, and communicate with, nearby cells, and plays an important role in cell growth, cell movement, and other cell functions.
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Blood must be maintained at a fairly constant pH between 7.35 - 7.45. One of the principal buffers responsible for doing this consists of carbonic acid in equilibrium with bicarbonate ions. If you breathe too deeply or rapidly, a condition known as hyperventilation may occur in which some muscles are temporarily paralyzed because the pH of the blood becomes too high.
Explain why the pH changes in this way and why the condition can be corrected by breathing in a paper bag.
Answer:
The most important way that the pH of the blood is kept relatively constant is by buffers dissolved in the blood. Other organs help enhance the homeostatic function of the buffers. The kidneys help remove excess chemicals from the blood, as discussed in the Kidney Dialysis tutorial.
Explanation:
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Tension is the major type of stress at transform plate boundaries
Why would it be more likely for Long Island Sound to freeze, than the ocean off Rhode Island?
The water is part freshwater, instead of entirely ocean water, which makes it freeze at a higher temperature because salt makes the water more resistant to freezing.
What is the name of a species that is highly connected to the entire food web and whose loss may result in ecosystem collapse
According to your cladogram, which two species are more closely related: worms and
spiders or worms and ants? How do you know?
According to cladogram, two species that are more closely related are worms and ants. The correct answer is worms and ants and they both are usually found in the herbivores food.
What is the category of herbivores ?It is the category in which animals feed on plants and the food based on plants.
Most ants are not eating worms but they may eat dead worms. Ants harm on worms by attacking the worms' food and To protect worms from these types of ants by raising the level of moisture in worm farm by re-wetting system regularly.
Sometimes, ants make way to compost bins to seek vegetables and fruit scraps meant for worms. This is the only kind of harm inflicted by ants on worms.
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PLSSS HELPPP i don’t get how to do this!!!!
Explanation:
it should be around -11.5. you read the scale at the upper meniscus, and the readings are as follows:
from down to up:
-15, -14, -13, -12, -11, -10.
Which complex carbohydrate has 3 to 10 simple sugar units and cannot be broken down by the body's digestive enzymes
Oligosaccharides are complex carbohydrates that have 3 to 10 simple sugar units and cannot be broken down by the body's digestive enzymes. They are complex carbohydrates.
Oligosaccharides, complex carbohydrates and enzymesOligosaccharides are complex carbohydrates composed of three or more monosaccharides (e.g., glucose and fructose) or the union of two or more disaccharides (e.g., lactose).
Humans cannot digest these oligosaccharides because we don't have digestive enzymes such as ⍺-galactosidase, thereby they cannot be hydrolyzed.
Complex carbohydrates are in turn long chains (either branched or unbranched) of monosaccharides linked by glycosidic bonds.
A well-known example of complex carbohydrates (polysaccharides) is starch, which is composed of many subunits of glucose.
Enzymes that break down complex carbohydrates must have the ability to break glycosidic bonds.
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Explain development of pollen grains and ovules
Explanation:
Pollen is produced within the anthers (microsporangia or pollen sacs) of the flower. During its development from an undifferentiated mound of cells (anther primordium) the anther forms two general groups of cells. The reproductive or sporogenous cells give rise to the microspores and are formed from cells located centrally within the developing anther. The non-reproductive cells form discrete anther tissues layers and include the epidermal, cortical and tapetal cell layers surrounding the sporogenous cells. The tapetum which is the innermost layer of the pollen sac plays a dominant role particularly during the microspore stage. For example, many male sterile mutations affect tapetal cell functions and development is often arrested during the microspore stage.
Microsporogenesis and microgametogenesis
Two distinct and successive developmental phases, microsporogenesis and microgametogenesis, lead to the production of the mature microgametophytes.
dev
Microsporogenesis comprises the events which lead to the formation of the haploid unicellular microspores. During microsporogenesis the diploid sporogenous cells differentiate as microsporocytes (pollen mother cells or meiocytes) which divide by meiosis to form four haploid microspores. Each diploid meiocyte gives rise to a tetrad of four haploid microspores and microsporogenesis is complete with the formation of distinct single-celled haploid microspores.
Microgametogenesis comprises events which lead to the progressive development of the unicellular microspores into mature microgametophytes containing the gametes. This phase begins with the expansion of the microspore which is commonly associated with the formation of a single large vacuole. Vacuolation is accompanied by the displacement of the microspore nucleus to an eccentric position against the microspore wall. In this position the nucleus undergoes first pollen mitosis (pollen mitosis I) which results in the formation of two unequal cells, a large vegetative cell and a small generative cell each containing a haploid nucleus. The generative cell subsequently detaches from the pollen grain wall and is engulfed by the vegetative cell forming a unique 'cell within a cell' structure. The engulfed generative cell divides once more by mitosis (pollen mitosis II) to form the two sperm cells completely enclosed within the vegetative cell cytoplasm either before pollen is shed (tricellular pollen) or within the pollen tube (bicellular