Complete question:
In a separate study, 68 rock pocket mice were collected from four different, widely separated areas of dark lava rock. One collecting site was in Sonora, Mexico. The other three were in Chihuahua, Mexico. Dr. Nachman and colleagues observed no significant differences in the color of the rocks in the four locations sampled. However, the dark-colored mice from the three Chihuahua locations were slightly darker than the dark-colored mice from the Sonora population. The entire Mc1r gene was sequenced in all 68 of the mice collected. The mutations responsible for the dark fur color in the Sonora mice were absent from the three different populations of Chihuahua mice. No Mc1r mutations were associated with dark fur color in the Chihuahua populations. These findings suggest that adaptive dark coloration has occurred at least twice in the rock pocket mouse and that these similar phenotypic changes have different genetic bases.
How does this study support the concept that natural selection is not random?
Answer:
The study supports the concept that natural selection is not random because in different areas with the same or very similar environmental characteristics, the same phenotype was produced by different types of mutations.
Explanation:
All of the sampled animals are inhabiting dark substrate. Probably animals needed to camouflage to survive. Natural selection must have driven them to produce dark color, similar to the substrate color. So animals from the different regions suffered different mutations that drove them to have almost the same dark fur color. The environmental condition is favoring the same phenotype.
why doesn't the periosteum cover the articular cartilage of a long bone
The periosteum does not cover the articular cartilage of a long bone because it is not located in the part of the bone where the joint is formed.
The main function of articular cartilage is to facilitate the movement of a joint in any mechanical circumstance.
The periosteum is a membrane that is part of the constitution of the bones, and that is located throughout the entire bone body, with the exception of the area that is destined for the articular surface.
It is found throughout the central part of the bone, that is, it passes through the entire diaphysis and reaches the metaphysis.
It disappears in the epiphysis because it is the area that generates contact with the tissues that make up the joints, necessary for movement.
Therefore, we can conclude that the periosteum is a membrane that covers all the bones, except the area that is destined for the articular surface.
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How are fossil fuels formed from geologic processes?
How are fossil fuels formed from geologic processes?
A. Fossil fuels are formed when mineral deposits are recrystallized due to high temperature and pressure over time.
Fossil fuels are formed when mineral deposits are recrystallized due to high temperature and pressure over time.
B. Fossil fuels are formed when biomass is covered by sediment, and the biomass experiences high temperature and pressure over time.
Fossil fuels are formed when biomass is covered by sediment, and the biomass experiences high temperature and pressure over time.
C. Fossil fuels are formed when tectonic plates slide past one another, creating small rock fragments.
Fossil fuels are formed when tectonic plates slide past one another, creating small rock fragments.
D. Fossil fuels are formed when tectonic plates collide together, forcing rock fragments deep underground.
Answer:
Fossil fuels are formed when mineral deposits are recrystallized due to high temperature and pressure over time.
Fossil fuels are formed when mineral deposits are recrystallized due to high temperature and pressure over time.
Explanation:
How are fossil fuels formed from geologic processes? Fossil fuels are formed when mineral deposits are recrystallized due to high temperature and...
ANSWER
Fossil fuels are formed when biomass is covered by sediment, and the biomass experiences high temperature and pressure over time. The correct option is B.
What are fossil fuels?Coal, oil, and natural gas are fossil fuels formed from the remains of dead plants and animals that were buried in sedimentary rock layers millions of years ago.
Over time, these organic materials are subjected to high temperatures and pressure, resulting in the transformation of organic matter into fossil fuels.
These hydrocarbons migrate through the surrounding rock over millions of years and accumulate in underground reservoirs, where they can be extracted and used as energy sources.
Fossil fuel formation is a slow process that requires specific geological conditions such as the presence of sedimentary rocks, high temperature, and pressure.
Thus, the correct option is B.
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Free radicals are
a. generated during bacterial infections
b. highly reactive atom containing all paired electrons
c. oxygen gas we breathe
Answer:
a. generated during bacterial infections
Explanation:
Free radicals are atoms with an unpaired electron which make them highly reactive. Many of these are necessary for life, such as the intracellular killing of bacteria by phagocytic cells such as granulocytes and macrophages
Pls someone help its a very easy question also don’t worry about the dot I accidentally did that
Which cell structure serves the stated function in both eukaryotic and prokaryotic cells?
nucleus: stores genetic material
O cytoplasm: protects cell structures
O ribosomes: regulate cell processes
O DNA: surrounds cell contents
Answer: O cytoplasm: protects cell structures
Explanation:
Which enzyme functions to prevent supercoiling of the DNA molecule during replication?
A)
Helicase
B)
Topoisomerase
C)
RNA polymerase
D)
DNA polymerase
Answer:
B
Explanation:
The function of some cyclin-dependent protein kinases (CDKs) has been remarkably conserved in evolution. Indeed, coding sequence for the human protein Cdc2 is able to substitute for the CDC28 gene in S. cerevisae and allow the yeast cell to grow and mate essentially normally. The following sequence near the NH2-end of the molecule is identical in both proteins: Gly-Glu-Gly-Thr-Tyr-Gly-Val-Val-Tyr-Lys-Ala. Does this mean that nucleotide sequences of the two genes coding for this region of the polypeptide are also identical
Answer:
No, because the genetic code is redundant
Explanation:
During the translation, a single amino acid may be coded for by more than one codon. It is for that reason that the genetic code is considered to be redundant. Tryptophan is the unique amino acid specified by a single codon. In this case, it is likely that silent mutations at the nucleotide sequence that encode for the Glu-Gly-Thr-Tyr-Gly-Val-Val-Tyr-Lys-Ala protein motif might have accumulated during the evolution of both CDK genes, modifying thus their nucleotide sequences while preserving the same protein sequence.
May someone help me with this please?
One species called the naked mole-rat, has some unique differences. They have a social structure similar to that of ants and bees, they are smaller in size and are mostly ectothermic. They live in harsh, dry scrub land habitats and forage mainly on underground tubers which are widely dispersed. Why you think this species evolved back to an ectothermic life style rather than staying endothermic like all other mammals
Answer:
May be of the environment they live or genetics.
Explanation:
This naked mole rat species evolved back to an ectothermic life style rather than staying endothermic like all other mammals because of the environment they live or change in the genetic makeup. The main reason for this evolution may be the environmental they lives or through the change in genetic makeup of this naked mole rat species so both factors can contribute in the evolution.
why potassium not an amino acid
(just give me a simple answer)
Potassium is an atom......
this type of consistent adaptation between two species is known as
Answer:
Symbiosis or Mutualism: When two species live together in a close association that is helpful to both species, the relationship is known as symbiosis. The oxpecker bird and the rhinoceros exhibit this relationship. The oxpecker receives protection and obtains food from the ticks and other pests infesting the rhino’s skin.
Explanation:
What will lead to changes in a phenotype of an individual?
a. medicines
b. nutrition frequency
c. DNA sequence variation
d. all of the above
Answer: D
Explanation:
your slide is in focus but you cannot see anything, what maybe the possible problem
Answer:
The correct answer would be - using a lens that is too high powered and thus you may be too focused on the specimen.
Explanation:
The possible scenario for this case where the slide is in focus but can not see anything could be either specimen is not under the lense or too focused on the specimen by using a very high-powered lens.
In a very high-powered lens, the lens becomes over-focused and the specimen does not look in the field of view of the lens, in such case, an individual should ower the power of lense.
where do we not find glycosidic bonds?
a. lipids
b. cellulose
c. lactose
d. starch
Answer:
C
Explanation: In a fat molecule, the fatty acids are attached to each of the three carbons of the glycerol molecule with an ester bond through the oxygen atom. During the ester bond formation, three molecules are released.
what name do we use for the outer membrane of skeletal muscle cells?
a. sarcoplasmic
b.sarcoplasm
c.sarcolemma
d.sarcasm
Answer:
The answer is sarcolemma
What is the direction of energy flow in an energy pyramid? How much energy is transfered from one step to another?
Answer:
- The flow of energy is from the lowest level (i.e., the base of the pyramid) to highest levels
- Approximately 10 percent
Explanation:
The energy pyramid is a diagram that shows the flow of energy between trophic levels in an ecosystem. Each trophic level is characterized by organisms that play specific roles in an ecosystem, for example, photosynthetic organisms (producers) at the base of the pyramid which represent the source of energy for herbivores localized at a higher level. The amount of energy decreases as it moves to higher trophic levels, approximately 10 percent of the energy is transferred from a trophic level to the next level and the remaining energy is lost as heat.
Help plzzz I’ll give Top Brainiest
Answer:
A
Explanation:
Just think about it, you have to heat the tomatoes on the stove to be a sauce, the heat makes it soft.
HELP ILL GIVE BRAINLIEST!! A scientist discovered a new species living in the deep ocean. This organism is prokaryotic, unicellular, has a cell wall, and is a heterotroph. What kingdom does this organism belong to?
Answer:
Kingdom Eubacteria
red-green color blindness is an x-linked recessive disorder. if the mother is RGCB and the father has normal vision, what are the changes for daughters and sons to hae the trait
Answer:
The correct answer would be -
RGCB daughter - 0%
RGCB sons - 100%
Explanation:
Red-green color blindness is a sex-linked recessive disease that means it will only express in absence of the normal allele that is present on X-chromosomes. As it is known that males have only one X-chromosomes therefore, the chances are more in males to be affected in presence of the recessive gene. In this given case women s RGCB and man has normal vision. The genotype of women would be both recessive alleles XcXc and genotype of man would be XY.
The gametes would be - Xc, Xc and X, Y
then the cross:
Xc Xc
X XXc XXc
Y XcY XcY
so the offspring would be -
Carrier female = XXc (50% chance in total and 100% in daughters)
RGCB daughters = 0%
RGCB male = XcY (100% in sons and 50% of total children)
1. According to Keller Larry it is the process by which governance is done.
A.politic
B. Governance
C. Government
D.alloftheabove
2. Politics refers to the study of state and government in the other hand, political science describes the
processes by which people and institutions exercise and exist.
A.Both statements are TRUE
C Only the first statement is TRUE
B. Only the first statement is FALSE
C.only the first statement is true
D. Both statementare FALSE
3. Defines as the execution of power, in whatever forms, policies, laws, decisions it chooses.
A.State
B. Government
C.politics
D.Givernance
4. It is the set-up that governs managing the country, the economy, the main social institutions -
A.Government
B. Governance
C.state
D.Politics
5. According to Keller Larry it is the process by which governance is done.
A Politics
B. Governance
C. Government
D.all of the above
6. Which of the following is a CORRECT understanding of ideology?
A.Attitudes
B. Values
C. Beliefs
D.all of the above
7. What can'we infer from the phrase, Men by nature is a political animal!
A. Everyone is subject to politics
C. Only politicians exercise Politics
B.Politics is portrayed by animals
D. C only
8. In general this means organizing human activities.
A. Politics
B. Government
C. Social
D. all of the above
9. Which of the following is an INCORRECT understanding of Politics?
A. It deals with theories
C. Understanding social groups
B. Making non government policies
D. A and B
10. Which of the following is associated with Political Science?
A. Political Theory
B. Public Law
C. Public Administration
D.all of the above
11. Which of the following facilitates change in Politics?
A.society
B.ideology
C.b only
D. a and b
12. Which of the following is the elements of politics
A.Power
B. Rule
C. Authority
D.all of the above
13. How do society regard politics as a desirable practices ?
A.Do the right thing
B. Being a law breaker
C. Being neutral
D all of the above
14. Which one is not an ill-effect of Politics?
A. Corruption
B. Discrimination
C. Equalities
D. Deviance
15. What is regarded as a means of organizing human activities
A.Government
B. Political science
C. Politics
D. All of the above
16.It is the right and obligation of qualified Filipino citizen to vote in the national and local election
A.Suffrage
B. Impeachment
C. Retirement
D. All of the above
17. Which of the following exercise legitimate power in government
A.Authority
B. Bureaucracy
C. Citizen
D. All of the above
18. Which of the following is the means by which the peope choose their official for definite and fixed
periods being as their representatives in the government.
A.Election
B Governing
C. Policies
D. All of the above
19. The power of the people to propose amendments to the constitution to propose and enact legislation
A.Succesion
B. Initiative
C. Impeachment
D. All of the above
_20. The study of politics is
also known as
A. Social Science
B. Natural Science
C. Political Science
D. All of the above
21.Its an ideology that have an idea of an organically unified national community and individual identi
must be entirely absorbed into the community or social group.
A. Liberalism
B. Fascism
C. Conservatism
D.All of the above
politics because politics is one of the major things
What is the central dogma, essential truth, of biology?
Answer:
The correct answer is - C.
Explanation:
The central dogma the two-process system that is an essential truth of biology as it is the basis of complete living organisms. It is a particular pattern of information that takes place in our cells by the process known as transcription and translation.
During Transcription DNA forms the basis of RNA and then in translation, the sequence of RNA forms the amino acids and the proteins are forms by these amino acids. Proteins is the structural part of the living organism.
Explain how the genetic disease called Sickle Cell Anemia is more prevalent in African- Americans compared to other races because of the Malaria Disease.
Answer:
Explanation:
This is because sickle cell disease is common in malaria dorminated area because their traits confers resistance to malaria. The red blood cells, which contain abnormal hemoglobin become sickle in shape after it has been affected by malaria parasite. Therefore, most American that have African ancestry are at high risk of
the disease because the African ancestry are carriers if this gene and are inherited by the Americans.
A recent attempt to explain the origin of life is called the
Answer:
Abiogenesis
Explanation:
How does a food chain differ from a food web?
A. A food chain identifies the consumers and producers, while a food web lists all of the animals in an ecosystem
B. A food web shows what to eat, while a food chain shows how the eating patterns are connected.
C. A food chain shows an eating pattern, while a food web shows how the various eating patterns are connected.
D. a food chain shows how eating patterns are connected among organisms, while a food web shows the eating patterns among organisms
Answer:
C
Explanation:
A food chain shows an eating pattern, while a food web shows how the various eating patterns are connected.
Which word describes the process by which a human transmits a disease to an animal?
Answer: reverse zoonosis or anthroponosis.
Explanation:
Answer:
a zoonosis
Explanation:
is an infectious disease caused by a pathogen (an infectious agent, such as a bacterium, virus, parasite or prion) that has jumped from an animal (usually a vertebrate) to a human. Typically, the first infected human transmits the infectious agent to at least one other human, who, in turn, infects others
What is the optimal pH that this enzyme functions at? And What is the optimal temperature that this enzyme functions at?
Answer:
Optimum Temperature is 35°C
Optimum PH is 7.0.
Explanation:
The optimum temp of enzymes is 20-35°c. They become inactivated at very low temperature and denatured (destroyed) at very high temp i.e. greater than 45°C. Low molecular weight enzymes are comparatively more heat stable.
The optimum pH of most enzymes is pH 7.0 (neutral pH).
6. Make connections: Why is it necessary for traits to be inherited for evolution to
take place?
Answer:
A condition necessary for evolution to occur is that a parent plant produces more offspring than can normally survive. ... A condition necessary for evolution to occur is that the traits of the "fittest" phenotypes that survive are inherited by the successful progeny. The offspring must tend to resemble their parents.
Explanation:
HELP!!!! FOR A TEMPLE GRANDIN ASSIGNMENT. WILL GIVE BRAINLY THING
how do you know which way a horse is looking?
Answer:
If its nose is facing you then it is looking to the left and the right.
Explanation:
A horses eyes are on the side of its head so where ever its nose is the eyes are lookng right and left. Hope this helps
How will the temperature inside the car feel?
Hint: Akbar wonders if what happens in his car is similar to the greenhouse
effect.
Predict the temperature of the air inside the car.
Colder than the outside air.
Warmer than the outside air.
Exactly the same as the outside air.
Answer:
Predict the temperature of air inside car because we can use cooler to cool and if we close all windows it will be hot inside.
Can anyone solve this