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Alisiya [41]
2 years ago
10

Explain why studying microorganisms such as bacteria can help scientists understand how evolution works.

Biology
1 answer:
Nezavi [6.7K]2 years ago
8 0

Answer: New research shows that colonies of Escherichia coli can demonstrate a form of learning.

Explanation: Bacterial colonies can evolve the ability to anticipate changes in their immediate environment, say researchers led by Saeed Tavazoie at Princeton University in New Jersey. Other types of bacteria could too. This skill could give them the edge over other bacteria that merely adapt themselves to current conditions.

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How does a dichotomous key help you identify unknown specimens based on their traits?

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3 years ago
In an investigation, plant cells are placed in water that has been tinted blue. The investigators observe the color of the cells
larisa [96]

Answer:

C

Explanation:

When plant cells take in water, the vacuole swells. A swollen vacuole indicates the plant cell has all the water it needs. This suggests that the plant is taking in water and is maintaining optimum conditions. This is an example of homeostasis.

If the cells burst apart, as in A and E, this would suggest the cell is not properly maintaining homeostasis, as the cell bursting suggests something has gone badly wrong. This suggests the cell has taken in too much water; the cell has not been able to maintain homeostasis and regulate water uptake to prevent this from happening.

In the reverse case, where the cells shrink apart (as in B), the cell would also not be properly maintaining homeostasis by failing to bring enough water into the cell to maintain a turgid state. This is also damaging for the cells.

Finally, D and E can also not be correct, because water can cross the cell membrane, and does not need to be pumped in or sent out by endocytosis.

8 0
3 years ago
explain how an element like carbon can be included in both the biotic and abiotic factorsof an ecosystem
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Well, the carbon cycle provides an example of matter cycling and energy flow in ecosystems. Photosynthesis, digestion of plant matter, respiration, and decomposition are important components of the carbon cycle, in which carbon is exchanged between the biosphere, atmosphere, oceans, and geosphere through chemical, physical, geological, and biological processes.
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3 years ago
What is the medical definition for edema?
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Edema is a condition of abnormally large fluid volume in the circulatory system or in tissues between the body's cells(interstitial <span>spaces).</span>
3 0
3 years ago
Type the correct answer in each box. The atomic number of sodium (na) is 11. The element phosphorous(p) is the fourth element to
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Answer:

The atomic number of phosphorus is 15. It has zero charge because it has 15 electrons.

7 0
3 years ago
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