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2 years ago

Which mechanism decreases the number of genetic variations in a population? A. founder's effect B. mutation C. gene flow

1 answer:

3 0

<span>The correct option is A. Founder's effect is the reduced genetic variability that occur as a result of population production from a small number of colonizing parents. The founder's effects is one of the ways by which nature can randomly produce new species from existing population.</span>

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Explain how building roads and parking lots in areas that were once fields can increase the risk of flooding.

pogonyaev

Answer:

well when u mess with a natural habitat it tends to do what's it's always has. like if that field always got flooded and u put a road there then obviously that road will be flooded when the time comes.

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3 years ago

When electric power is carried over long distances through power lines, the electrical

swat32

Answer:

it increases in energy

Explanation:

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2 years ago

Describe the experiment, to show that light intensity, water, chlorophyll, and cabondioxide are needed for photosynthesis

lisov135 [29]

Answer:

Is light needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in an opaque box and 1 part in a transparent box (one with light and one without)

3. Test for starch (BEWI)

B. Is carbon dioxide needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in a box with CO2 absorber and 1 part in box with a CO2 provider

3. Test for starch (BEWI)

C. Is chlorophyll needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. Use a variegated leaf

3. Test for starch (BEWI)

B E W I

1. Put leaf in boiling water to destroy the cell membrane and denature enzymes

2. Ethanol in a hot water bath to remove chlorophyll

3. Warm water to soften the leaf

4. Add drops of iodine solution

Explanation:

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2 years ago

if two different types of particles have the same speed in a medium,why is chromatography process not suitable? write with a rea

vekshin1

Explanation:

When using chromatography, the 2 solutes in the solvent paper should have different Rf values from the base line to identify them as different compounds.

If they were to have the same speed in the solvent, they would appear as 1 dot instead of 2 separate dots, which is a false reading.

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3 years ago

Which of the following distinguishes why large corporate farms are losing favor with the public? pleas help me out!

polet [3.4K]

The public is upset with the farms’ unnatural farming practices.

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3 years ago

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