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Anna007 [38]
3 years ago
15

What BEST describes the importance of ice cores in determining Earth's history?

Biology
1 answer:
lara31 [8.8K]3 years ago
5 0

Answer: They contain evidence showing changes in the atmospheric composition over time.

Explanation: :)

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The movement of particles from an area of high<br> concentration to an area of low concentration
Montano1993 [528]

Answer:

Passive Transport

Explanation:

The movement of molecules from an area of High concentration to an area of lower concentration in a living cell is called Passive Transport.

Passive Transport does not require energy input.

An example is Diffusion.

5 0
2 years ago
What can be concluded about clades 2 and 4 from this cladogram? The image depicts a cladogram with numbered and lettered branche
Y_Kistochka [10]

Answer:

Explanat Clade 4 was derived from clade 2.ion:

7 0
3 years ago
The term heterochromatin refers to heavily condensed regions of chromosomes that are largely devoid of genes. Since few genes ex
storchak [24]

Answer:

The correct answer is: S phase.

Explanation:

DNA can be divided into two functional forms: heterochromatin and euchromatin. Heterochromatin refers to the DNA that doesn't code for proteins or RNA, and thus it remains heavily condensed, for there would be no use to use it for transcription or translation. Euchromatin, on the other hand. is the DNA with the genes that can be transcripted into RNA and translated into proteins; for this reason, Euchromatin is less compact than Heterochromatin.

<u>The only point in the cell cycle where Heterochromatin would be decondensed is </u><u>S phase</u><u> because, in this part of the cell cycle, the </u><u>DNA gets replicated</u><u> in order to prepare for Mitosis</u>. For DNA to be replicated, it first needs to be decondensed to their two strands can be separated and used as guides for the synthesis of the two new strands.

8 0
4 years ago
Why is it important for scientists who study ecosystems to study more than the organisms that live there?
Black_prince [1.1K]
To learn and study the organisms that live in the surrounding areas. The native species could die or be destroyed by the non native species.
5 0
3 years ago
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What is produced from the third stage of cellular respiration, the electron transport chain?
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Cellular respiration<span> uses energy in glucose to make ATP. Aerobic (“oxygen-using”)</span>respiration<span> occurs in three </span>stages<span>: glycolysis, the Krebs cycle, and </span>electron transport<span>. In glycolysis, glucose is split into two molecules of pyruvate.</span>
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3 years ago
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