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matrenka [14]
3 years ago
11

Which type of change is necessitated unexpected environmental events or pressures?

Biology
1 answer:
jeka943 years ago
4 0

Reactive changes are the type of changes that are necessitated unexpected environmental events or pressures. Organiyations or businesses make such reactive changes in their practices after some threat or opportunity has already occurred.

Other types of changes are anticipatory changes, that are the oppsite because they are planned changes.

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Which statement about the size of the atom is true?
Anuta_ua [19.1K]

Answer:

A= The size of an atom is smaller than the size of a sand particle on a beach.

The size is basically really really small, and you cannot see it in the naked human eye.

8 0
3 years ago
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The cells in a plant shrivel, causing the leaves and stem to wilt. This is an example of poor _____.
Angelina_Jolie [31]


Thermoregulation- Helps the plant to maintain its temperature.    

Water regulation-Laws requiring water usage of how many pollutants in water.

Hormone regulation-Plants do not produce hormones.

Waste regulation-Disposal of waste.

Hope this helped.

7 0
3 years ago
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Evidence that supports the prokaryotic origins of mitochondria and chloroplasts are all of the following except __________.
hodyreva [135]

Your question was incomplete (please check below the full content). The evidence that supports the prokaryotic origins of mitochondria and chloroplasts do not include multiple DNA copies associated with inner membranes.

<h3>What is organellar DNA?</h3>

The organellar DNA is the genome contained within mitochondria and chloroplasts, which is independent of nuclear eukaryotic DNA.

The organellar DNA contains multiple DNA molecules, which are found in association with the inner membrane, ant is not found in prokaryotic life forms.

The complete question in this case is: "Evidence that supports the prokaryotic origins of mitochondria and chloroplasts are the presence of mitochondria, a eukaryote engulfing prokaryotic photosynthetic cells, and non-photosynthetic eukaryotes, EXCEPT."

The endosymbiotic theory states that mitochondria and chloroplasts evolved from prokaryotic microorganisms that entered into a primitive eukaryotic cell.

This theory is supported by certain features of mitochondria and chloroplasts such as a similar size to prokaryotes.

In conclusion, evidence do not include the arrangement of the organellar DNA.

Learn more about mitochondrial DNA here:

brainly.com/question/1563697

#SPJ1

8 0
2 years ago
How has waste leaving a cell affected its surface area to volume ratio?
lapo4ka [179]

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One way to increase surface area is to flatten the cell. That is why red blood cells are flat discs, instead of spheres. Another way is elongation. That is why many bacteria are rod shaped, and why neurons are elongated. In fact, the human body relies on the same principle to adapt to climate. Long tall and lean folks with long arms and legs live in East Africa, because such shapes increase surface area to get rid of excess body heat to avoid heat strokes. Europeans and Asians adapted to cold climates, in contrast, have shorter arms and legs and rounder torsos to minimize surface area. to conserve body heat.

6 0
3 years ago
Why do many desert plants have small leaves
AlekseyPX
Because the leaves can’t place water in the roots
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