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Softa [21]
3 years ago
15

While preparing a cell culture aside colony of bacteria into distilled water and stir that up this mixture of water and living c

ells would best be called?
A - a solution
B- a suspension
C- a buffer
D- an adhesion
Biology
1 answer:
crimeas [40]3 years ago
5 0
D is your answer hope this helps
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Which of the following is a way that humans impact rivers and streams?
Novosadov [1.4K]

Answer choices are:

A. Pollution

B. Dams

C. Flooding

D. All of the above

________________________________________________________

Correct answer choice is :

D) All of the above

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Explanation:

Sulfur dioxide and nitrogenous oxide released from industries and power plants infiltrate river ways by acidic rainfall. Sewerage and effluent are released into rivers in some regions. Pollution can decrease the pH of the water, attacking all organisms from algae to vertebrates. Biodiversity reduces with reducing pH.

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ser-zykov [4K]

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Explanation:

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What organelles have evolved through endosymbiosis?
Mademuasel [1]
<h3>Answer:</h3><h3>Mitochondria and chloroplasts originated from the endosymbiotic association of aerobic (more...) A critical step in the evolution of eukaryotic cells was the acquisition of membrane-enclosed subcellular organelles, allowing the development of the complexity characteristic of these cells.</h3><h3>Hope this is fine for you </h3>
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3 years ago
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LD
Arturiano [62]

Answer:

The best explanation for the increased lymphocyte levels in Kaya is that she was not tissue typed prior to her surgery, and her body is mounting an immune response.

Explanation:

When performing an organ transplant, it must be verified whether the organ to be transplanted is compatible -by tissue typing- with the recipient, since it is recognized as a foreign body by the body and can be rejected.

One of the immunological responses to organ rejection is called cell rejection, involving T-helper and cytotoxic lymphocytes.

<u>It is very likely that in Kaya's case the tests have not been performed correctly, and she is experiencing rejection of the organ she received</u>. The progressive increase in lymphocytes may be an indication of this.

The other options are not possible because:

  • <em>Administering </em><u><em>antibiotics</em></u><em> should not raise lymphocyte levels. </em>
  • <em>There is no evidence of </em><u><em>antigen </em></u><em>attack. </em>
  • <u><em>Immunosuppressant drugs</em></u><em> do not increase lymphocyte count.</em>
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The frog's tongue is anchored in the very front- opposite to the orientation and anchoring of humans. Why do you think this is s
Vlada [557]
<span>Frog's tongues are attached to the front of their mouths rather than at the back like humans. When a frog catches an insect it throws its sticky tongue out of it's mouth and wraps it around its prey. The frog's tongue then snaps back and throws the food down its throat.</span>
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3 years ago
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