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balandron [24]
3 years ago
7

Which of these BEST describes our current understanding about how species evolve over time?

Biology
2 answers:
pantera1 [17]3 years ago
6 0
The answer is <span>D)- Populations evolve as natural selection results in a change in the frequency of alleles within the population over time.</span>
Vitek1552 [10]3 years ago
5 0
<span>Populations evolve as natural selection results in a change in the frequency of alleles within the population over time.

</span>
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What impact would the loss of the grizzly bear population have on a food web (how would other organisms be impacted)?
Katyanochek1 [597]

Answer:

there would be a surplus of other prey species

Explanation:

5 0
3 years ago
Estas de acuerdo con la aplicación del principio de la física en ecología:¨la energía no desaparece ni se destruye, solo se tran
saveliy_v [14]

Answer:

Esta afirmación es correcta ya que la ley de conservación de la energía es también aplicable a sistemas vivos  

Explanation:

La ley de la conservación de la energía (la cual es la primera ley de la termodinámica) indica que la energía no se puede crear ni se puede destruir, solamente se transforma, de un tipo a otro. La ley de la conservación de la energía es de vital importancia para entender la existencia del mundo natural. En ecología, la energía fluye de un nivel trófico a otro en forma de biomasa, es decir, dentro de la cadena alimentaria. Esta energía no se puede crear ni destruir sino que es almacenada en los organismos, los cuales representan sistemas abiertos que intercambian materia y energía con el medio. Una vez dentro del organismo, una parte de esta energía es transformada (en plantas, por ejemplo, la energía es convertida en enlaces químicos durante la síntesis de carbohidratos), mientras que otra parte de la energía se elimina al exterior (por ejemplo, se disipa en forma de calor), pero la energía no se crea ni se destruye.

3 0
3 years ago
Kaylee is making a poster to show changes that happen in nature during winter in northern
kari74 [83]

During the winter season, the tree branches get dormant.

<u>Explanation:</u>

As the winter season starts, many plants show very slower metabolism that is the growth of the plants become very slow.

During the winter, there is very low amount of sunlight that the plants receive and so the synthesis of chlorophyll by the plants also in very small amount, and so there is least amount of sugar to metabolize by means of a slower Photosynthesis.

These tree branches become dormant during winter season, and it is mostly covered with the scales.

3 0
3 years ago
You are performing experiments on viruses. You have a variety of enzymes in your lab that target different organelles or macro-m
klemol [59]

Answer:

B. nuclease (destroys DNA and RNA)

Explanation:

Viruses are the particles that contain a protein coat called the capsid. Inside the capsid, viruses have their genetic material. Viruses may have single-stranded or double-stranded DNA molecules or single-stranded or double-stranded RNA molecules as their genetic material. Therefore, to destroy viruses, one must target their genetic material. Nucleases are enzymes that digest nucleic acids (DNA and RNA). The use of nucleases would destroy the genetic material of viruses and would be most effective to control them.

7 0
2 years ago
Which describes the boundary where earthquake activity occurs along rift valleys ?
horsena [70]
The answer will be c.
8 0
3 years ago
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