BIOLOGY HIGH SCHOOL

What is the most appropriate unit for describing a 26-mile marathon run?A.terameter
B. gigameter
C.kilometer
D. nanometer

Answers

Answer 1
Answer: The most appropriate unit for describing a 26 mile marathon run would be C. Kilometre. As kilometres can be easily utilized and converted to miles and vice-versa.
Answer 2
Answer:

Answer:

c) kilometer

Explanation:

took the edg 2020 test :)

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what determines the color of your skin? a. number of melanosomes b. type of melanin c. amount of melanin d. all of the above

Answers

Answer:The color of your skin is determined by all of the factors listed: the number of melanosomes, the type of melanin, and the amount of melanin.

Explanation: 1. The number of melanosomes: Melanosomes are structures found in skin cells that contain melanin. The more melanosomes present, the darker the skin color can be. For example, individuals with darker skin tones generally have more melanosomes compared to those with lighter skin tones.

2. The type of melanin: There are two main types of melanin - eumelanin and pheomelanin. Eumelanin is responsible for brown and black pigmentation, while pheomelanin contributes to red and yellow pigmentation. The ratio of these two types of melanin in your skin can affect its color.


3. The amount of melanin: The amount of melanin produced by melanocytes, the specialized cells in the skin, also influences skin color. Higher levels of melanin result in darker skin tones, while lower levels result in lighter skin tones. This variation in melanin production can be influenced by genetic factors, sun exposure, and hormonal changes.


In summary, the color of your skin is determined by the number of melanosomes, the type of melanin present, and the amount of melanin produced. These factors interact to create the wide range of skin colors observed in different individuals

Which of the following clades is most likely to survive a series of catastrophic events over time? (1 point)A. A clade with a few closely related and similar species.
B. A clade with a few distantly related and diverse species.
C. A clade with many closely related and similar species.
D. A clade with many distantly related and diverse species.

2. In the past, mass extinctions encouraged the rapid evolution of surviving species (1 point)
A. by changing developmental genes.
B. by making new habitats available to them.
C. because they killed all organisms that had coevolved.
D. because they spared all organisms that had evolved convergently.

3. The Australian flying phalanger is a marsupial flying squirrel.
Its appearance, behavior, environment, and diet closely resemble those of the American flying squirrel, a placental mammal. This resemblance is most likely due to (1 point)
A. adaptive radiation.
B. convergent evolution.
C. coevolution.
D. gradualism.

4. Gradualism is a pattern of evolution in which (1 point)
A. a single species evolves into several closely related species.
B. several distantly related species develop similarities.
C. a species evolves at a slow, steady pace.
D. a species has periods of little evolution interrupted by periods of rapid evolution.

5. Mass extinction would most likely result from which of the following events? (1 point)
A. A disease kills off a single species of predator within an ecosystem.
B. A wildfire burns a national park.
C. Global temperatures drop several degrees after several massive volcanic eruptions.
D. A massive earthquake strikes North America.

Answers

The correct options are as follows:
1. D.
A clade refers to a group of organisms that are made up of evolutionary descendants that originated from a common ancestor. A clade that will survive a series of catastrophic events must be one that is made up of distantly related and diverse species. This is because, those species will have different type of adaptability capacity and will be able to adapt in different ways to the catastrophic events. Due to the differences in their ability to adapt, some of the specie will survive the catastrophic events even if others are wipe out.

2. B.
The mass extinction of one specie usually creates space for another new specie to survive. The new specie that survive the old one may possess the ability to adapt to the event that wipe out the former set of living organisms and thus, the new specie will be able to occupy and reproduce in their new space. Mass extinction is said to occur when the whole population of living organism living in an ecosystem are wipe out as a result of unfavorable conditions.

3. B.
Convergent evolution refers to the independent evolution of similar features in species that arise from different lineages. The species involved usually evolve these traits as a result of having to adapt to similar environments. Convergent evolution usually result in evolution of analogous structures, that is, structures that have similar forms or functions but which are not present in the last common ancestors of the species.

4. C.
 In evolution, gradualism refers to theory that states that evolution occurs slowly and gradually, thus, large changes in evolution are actually product of small changes that occur over a long period of time. The theory of gradualism was originally proposed by James Hutton in 1795.

 5. C.
Mass extinction refers to the wiping out of a a large number of species within a very short time. Mass extinction can occur as a result of severe unfavorable conditions that all the species in an ecosystem can not adapt to. An instance of this is a drastic decrease in global temperature after several massive volcanic eruptions.

Answer:

D

B

B

C

C

Explanation:

Actinophryx has an amoeboid body and glassy silica shells. Which phylum and class does it belong to?

Answers

The answer is phylum Sarcodina and class Heliozoa.


Actionophryx belongs to the group of Sarcodina. However, this is an older classification, and it is known that it belong to the groups of amoebas. It has a spherical body (helios, greek for sun) with axopodia (arms) so it is classified to the class sun-animalcules or Heliozoa. The body is surrounded by a glassy silica shell. It lives in freshwater, but some species are found in seas and oceans. 

True or False A type of building that absorbs the energy of seismic waves is a fixed-base building.

Answers

The statement "A type of building that absorbs the energy of seismic waves is a fixed-base building." is false. Base isolated building is type of building that absorbs the energy of seismic waves. Base isolation is a standout amongst the most effective devices of seismic tremor designing relating to the detached auxiliary vibration control advances.

Answer:

false

Explanation:

the building needs to be flexible :)

Acting in accordance with your own values, respecting yourself, and taking responsibility for your actions and your health is a sign that you _______. are book smart

are self-confident

have a high IQ

have a high grade point average

Answers

are self confident .

What's the source code of transcription

Answers

I assume here that you mean the transcription of DNA to RNA (which already answers your question! the source is the DNA!)  DNA is the genetic code kept in the nucleus. It must be copied (transcription) to RNA which  caries to the ribosomes, which will read the code.
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