Heat, acids, bases, salts, or mechanical agitation can unfold, change the shape or denature proteins.
What is Denaturation?This is common in protein molecules and it involves the breaking of the weak bonds which ensure that the protein's arrangement is highly ordered.
Heat and other chemicals are able to denature protein which is why it was chosen as the most appropriate choice.
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help lol
the options (for all) are
radiation
convection
conduction
What does it mean for a trait, such as light skin coloration, to be under negative selection in equatorial Africa? Relate negative selective pressure to what we know about MC1R allele diversity among African populations.
It means that there is selection against that trait.
Hope this helps,
- ROR
What can be concluded about clades 2 and 4 from this cladogram? The image depicts a cladogram with numbered and lettered branches. The image includes clades one, three, and seven on one fork of the tree, and clades two and four on the other. From clade one moving up the tree, the first fork is clade two which ends in organism group D. From clade two, clade five diverges ending in organism group C. Clade one continues up the tree, ending in organism group A. Toward the end of clade one, clade four diverges, ending in organism group B. On the remaining branch of the tree, moving upward from clade one, clade three diverges, ending in organism group E. From clade three, clade six diverges ending in organism group F. Clade seven diverges from the main branch, ending in organism group G, and the main branch ends in organism group H. Clade 2 was derived from clade 4. Clade 4 is ancestral to clade 2. Clade 4 was derived from clade 2. Clade 2 is a subset of clade 4.
Answer:
Clade 4 was derived from clade 2.
Explanation:
Answer:
Clade 4 was derived from clade 2.
Explanation:
Glycolysis requires
ATP.
O sunlight.
O NADP+.
oxygen.
Answer:
Glycolysis requires two molecules of NAD+ per glucose molecule
and in addition the first phase of glycosis reaction requires atp
Explanation:
glycosis doesn't require oxygen
Explain why red blood cells might use up oxygen, if they
have mitochondria.
Need help ASAP
what have more thermal energy?a bathtub at room temperature or a bathtub at 100° F ?
Answer:
Suppose you were to compare a milliliter of water near the boiling point with a bathtub full of water at room temperature. The bathtub contains a billion times as many water molecules, and therefore has a higher total kinetic energy and more heat.
Explanation:
A bathtub at 100°F has more thermal energy than a bathtub at room temperature.
Thermal energy is the energy that an object possesses due to the motion of its particles (atoms and molecules). The higher the temperature of an object, the more kinetic energy its particles have, resulting in greater thermal energy.
In this scenario, comparing a bathtub at room temperature (which is typically around 68-72°F) to a bathtub at 100°F, the bathtub with water at 100°F has higher thermal energy. The reason is that the water molecules in the warmer bathtub are moving more rapidly than in the cooler one. They have greater kinetic energy and are vibrating more vigorously, contributing to a higher thermal energy content.
Even though the absolute temperature difference might not seem large (32°F), the increase in thermal energy is significant due to the exponential relationship between temperature and kinetic energy. As the temperature rises, the molecules' energy increases exponentially, resulting in a notable difference in thermal energy.
In conclusion, the bathtub with water at 100°F has more thermal energy compared to the bathtub at room temperature due to the higher kinetic energy and faster motion of water molecules at the higher temperature. This concept underscores the connection between temperature and thermal energy in understanding the behavior of matter.
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Which elements are common to all four of the base nucleotides found in DNA? Select all that apply.
nitrogen
sodium
carbon
iron
Explanation:
The nitrogenous bases of nucleotides are organic (carbon-based) molecules made up of nitrogen-containing ring structures. Why is it called a base? Each nucleotide in DNA contains one of four possible nitrogenous bases: adenine (A), guanine (G) cytosine (C), and thymine (T)
Answer:
nitrogen, carbon
Explanation:
DNA nucleotide consists of a phosphate group, deoxyribose sugar and one of the 4 possible bases- adenine, guanine, cytosine and thymine.
The elements that are found in four of the bases are carbon, nitrogen and hydrogen.
Base pairing occurs between a purine and a pyrimidine. Purines are fused double ring structures and can be adenine or guanine, while pyrimidines are single ring structures and can be cytosine and thymine in the case of DNA.
Glucose is broken down in the chemical processes of aerobic respiration.
Which row of the table below shows the correct products of this breakdown?
[tex]\bold{\huge{\purple{\underline{ Answer }}}}[/tex]
Aerobic respiration :- Aerobic respiration is process of respiration in which complete oxidation of glucose takes place in the presence of oxygen
That is,
Aerobic respiration is takes place in four stages :-
GlycolysisThe link reaction The Krebs cycle Oxidative phosphorylationIn aerobic respiration, Glucose with 6 carbon atoms broken into 2 pyruvic acid each with 3 carbon atom and produces water + CO2 + energy.
Whereas,Anaerobic respiration :- is the process of respiration in which incomplete oxidation of glucose takes place in the absence of oxygen
The end products of glucose in anaerobic respiration is
In human muscles, Lactic acid + Energy In yeast, Ethanol + CO2 + EnergyHence, Option D is the correct answer.
Which is an example of the Earth's spheres interacting?
SELECT ALL THAT APPLY!
Answer:
All the spheres interact with others spheres. for example , rain(hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and riviers that provide drinking water fore wildlife and humans as well as water for plant growth
how was the solar system originated according to the nebular hypothesis?
Answer: The Sun and all the planets of our Solar System began as a giant cloud of molecular gas and dust. Then, about 4.57 billion years ago, something happened that caused the cloud to collapse.
Hope this helps!
What Cell is squarish Shape at
Options Plant Cell
Animal Cell
Answer:
your answer will be the first option, plant cell
Explanation:
hope this helps you...!
Relative to the speed of a cloud over Greenland, a cloud over the equator would be traveling
same speed
None of the answers are correct
faster
slower
Clouds move faster on the Greenland regions as compared to equator.
Factors affecting speed of cloudThe speed of cloud depends on the type of cloud and the wind flowing in that region. If the wind blows at higher rate and the cloud is lighter then the cloud will move with higher speed.
While on the other hand, more heavy cloud and low speed of wind leads to the lower speed of cloud in that region so we can conclude that wind speed and type of cloud are the factors that affecting speed of cloud.
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Even though most plants are angiosperms, gymnosperms still have an advantage in certain environments. In what type of environments are gymnosperms more successful than angiosperms
Upon reaching the threshold for an action potential, the next step in its generation is the opening of _______ channels.
Upon reaching the threshold for an action potential, the next step in its generation is the opening of _sodium (Na)_ channels. The correct answer is sodium,
How does membrane depolarization occur?The occurrence of action potential requires the existence of active voltage-dependent channels to open and close in response to the membrane depolarization.
When depolarization reaches and supers the threshold point, voltage-dependent Na+ channels open and the ion gets into the cell.
The entrance of Na+ decreases the electric charge difference between the cellular interior and exterior. Membrane depolarizes and produces the action potential that tends to reach a potential equilibrium for Na+ = +60mV.
The higher the Na+ input is, the greater is the depolarization and the greater is the Na+ permeability.
Once Na+ channels are closed, voltage-dependent K+ channels open, increasing the membrane permeability to the ion, letting K+ get out of the cell, following the electrochemical gradient.
The closure of Na+ channels and opening of K+ channels are responsible for membrane repolarization.
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Which mineral is a secondary nutrient for plants?
A.nitrogen
B. phosphorus
C. potassium
D. calcium
Answer:
Hello!
A mineral that is a secondary nutrient for plants is calcium.
Hope this helps!
How does the myosin head obtain the energy required for activation?.
The myosin head obtains the energy required for activation from the hydrolysis of ATP. This molecule contains high-energy phosphate bonds.
What is ATP?Adenosine triphosphate (ATP) is a nucleoside triphosphate used to carry out many cellular processes.
ATP is also one of the nucleotides used during transcription to generate an RNA strand (ofter mRNA).
Myosin is a motor protein that converts chemical energy (ATP) to mechanical energy and thus produces a given movement.
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The process where DNA is copied is know as
Answer:
Replication
Explanation:
The process that copies DNA is called replication. Replication involves the production of identical helices of DNA from one double-stranded molecule of DNA. Enzymes are vital to DNA replication since they catalyze very important steps in the process.
which is the best description of the characteristics of the asthenosphere?
A. Solid, but flowing like putty
B. Liquid, but dense
C. Solid metal that is hot
D. Brittle metal that is shifting
In order to predict how much tension a muscle can produce when contracting, it is important to consider the ______ relationship of thick and thin filaments.
The muscles are composed inside mainly of fibers, filaments and proteins, where it is important to consider the length-tension relationship of the thick and thin filaments to know the tension.
What is muscle contraction?It is an organized and natural event that takes place at the level of the muscles when the fibers and proteins inside them come together, and tension is produced in the area.
Characteristics of muscle contractionIn a muscle contraction, a tension is generated that depends on the length-tension relationship, which causes a displacement of the muscle filaments.The proteins actin and myosin join together, and a force is generated so that the final movement is achieved.To know the tension, the muscle changes length and measurable external work is produced from the force and distance traveled.Therefore, we can conclude that the contraction allows us to make movements to reach and carry our extremities to different places.
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The insertion of the human insulin gene into the bacterium Escherichia coli allowed it to produce human insulin. Which type of organism is E. Coli? restriction organism recombinant organism transgenic organism vector organism.
Genetically modified and engineered organisms are that can produce the gene and the product of interest when modified. Escherichia coli is a transgenic organism.
What is a transgenic organism?
A modified organism through the genetic and molecular pathway alteration is called a transgenic organism. Various techniques are employed to alter the genetic mechanism of the organism.
They are prepared by inserting a genetic fragment of interest from some other species by the method of recombination technology and genetic engineering.
The organism in which the insertion and the alteration are done to produce the product of interest are transgenic. Here E.coli get altered by the insertion of the human insulin-producing gene.
Therefore, option C. transgenic organism is correct.
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Suppose that two distantly related species live in similar environments and share a distinctive characteristic that facilitates survival in their environment but is not found in their immediate ancestors. Based on this information, this distinctive feature most likely represents a character that spread from:______.
a. one species to the other by gene flow.
b. an analogous character.
c. a homologous character.
d. a character that arose by genetic drift.
Based on this information, this distinctive feature most likely represents a character that spread from an ANALOGOUS character. They are present in unrelated species.
What are analogies in evolution?An analogy is a structure observed in unrelated species that emerged as a consequence of adaptation to similar environmental conditions.
Analogous structures often exhibit the same function but they do not have a common evolutionary origin.
Conversely, homo-logies are structures that may or may not have the same function but they are present in a common ancestor.
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Three organisms that are carnivores
Answer:
vultures
fox
plants
hope I'm right
pls help me, I can't afford to fail this class
Answer:
the first one is diploid
meoisis produces haploid gametes that have half the number of chromosomes (23).
not sure about the rest
Explanation:
what might happen if cyclins were produced constantly throughout the cell cycle
please help
Answer:
What would happen to a cell if cyclin was constitutively expressed? -Cyclin-dependent kinases would be deactivated.
A planet has been observed orbiting a nearby star. This star has a mass of 3. 5 solar masses, and the planet is 4. 2 AU from the star. What is the planet’s orbital period in Earth years? Round your answer to the nearest whole number. Earth years.
Planets rotate and revolve around the sun in fixed orbits and are at a specified distance from the sun. The planet's orbital period will be 4.6 years.
What is an orbital period?The time taken by the planet to complete one revolution around the sun in their fixed orbits is called the orbital period of the planet.
The period can be determined using Kepler's third law:
[tex]\rm T^{2} = \dfrac{4\pi ^{2}}{GM}\times a^{2}[/tex]
Where,
The orbital period of a planet (T) = ?Distance form sun (a) = [tex]\rm 6.28\times 10^{11} m[/tex]Gravitational constant (G) = [tex]\rm 6.67 \times 10^{-11} m^{3}kg^{-1}s^{-2}[/tex]Mass of the parent star (M) = [tex]\rm 6.96 \times 10^{30} kg[/tex]Substituting values in the above equation:
[tex]\begin{aligned}\rm T&= \sqrt{\dfrac{4\pi ^{2}}{6.67\times 10^{-11}\times 6.96\times 10^{30}}\times (6.28\times 10^{11})^{3}} \\\\&=145,128,196\;\rm seconds\end{aligned}[/tex]
Therefore, 4.6 years is the orbital period of the planet.
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What is a facilitated diffusion?
What does it tell us when some genes are highly expressed in healthy cells but not expressed in cancer cells
Answer:
A red spot means that the gene is expressed in cancer cells but not expressed in normal cells. This gene may be involved in causing colon cancer. A yellow spot mean that the gene is expressed in both normal and cancer cells
Explanation:
Which factor influences the mass movement of particles?
-
wind blowing across a body of water
addition of vegetation to a slope
large rocks and debris on a slope
puddle of water resting on flat land
Answer: c. large rocks and debris on a slope
Explanation:
The ________ controls when the gene is transcribed by rna polymerase.
Which of the following is not true about Darwin’s book On the Origin of Species? a. He worked on the manuscript for three years. B. It was successful. C. It explained his theory of evolution. D. It was based on his findings in South Africa. Please select the best answer from the choices provided A B C D.
Answer: the other person is correct!!
Explanation:
it is D, took the test, edge 2022