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Maksim231197 [3]
3 years ago
11

PLEASE HELP ASAP!

Biology
1 answer:
irinina [24]3 years ago
3 0
1. B blood type that is a multiple allele trait


2. A height from short to tall that is a polygenic trait
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The Ames test is used to identify potential carcinogens. A compound tested resulted in a few scattered colonies growing on the m
alexandr402 [8]

Answer:

The correct answer is option D.

Explanation:

In the given case, a similar amount of colonies is witnessed in both control as well as the test plate. This concludes that it does not influence the organism, thus, there was no enhancement in the rate of reversion, that is, the number of colonies in the test plate does not get decrease. Thus, the compound in the disc is not mutagenic as there was no increase in the reversion rate.

6 0
3 years ago
the fluid mosaic model defines the plasma membrane as a structure composed of multiple components, including phospholipid bilaye
Eva8 [605]

Answer: True

Explanation: The plasma membrane is a membrane the protects the cell and its environment. It regulates what goes inside and what comes out of the cell. .

Plasma membrane as a structure composed of multiple components, including phospholipid bilayer, carbohydrates, and other lipids. The phospholipids possess one head and two tails. The head is basically polar and hydrophilic (water-loving) while the tails are non-polar and hydrophobic (water-fearing).

The plasma membrane is decorated with proteins. Some protiens are extrinsic proteins that run halfway through the membrane, while others are called integral proteins that go entirely through the membrane. The function of these proteins is to serve as channels to allow the molecules to enter and leave the cell.

7 0
3 years ago
How many years ago did the earth form?
iogann1982 [59]
4.6 billion years ago the earth formed
7 0
3 years ago
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I need help ...please seriously
yarga [219]

Answer:

I think the answer is B

Explanation:

5 0
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What does watershed consist of?
mestny [16]

Watershed is the place where water of rain and snow get stored. The watershed contains surface water-and wetlands--and all the underlying ground water,lakes, streams, reservoirs. Lake is the major component of the watershed . The watershed can be used for various purpose like dams, hydrological modification etc.

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