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Amanda [17]
3 years ago
5

How has the size of U.S. farms changed since World War II?

Biology
1 answer:
ad-work [718]3 years ago
3 0

Answer:

Farmers Produce More Food for War in World War II. As the war approached, it got worse for farmers before it got better. Farming exports fell 30 to 40 percent below the average of the ten depression years that preceded the war. Grain exports, for example, fell 30 percent in one year between September 1939 and 1940.

Explanation:

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How would a tree falling from the top most layer most immediately affect the surrounding plants in the other lower layers?.
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Answer:

More sunlight but less space.

Explanation:

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3 0
2 years ago
The success of plants extending their range northward following glacial retreat is best determined by _____.
alexgriva [62]

The complete question is :

The success of plants extending their range northward following glacial retreat is best determined by _____.

A) whether there is simultaneous migration of herbivores

B) their tolerance to shade

C) their seed dispersal rate

D) their size

Answer: The seed dispersal rate

Explanation:

The  seed dispersal can be defined as the movement of the seeds away from the parent plant. The ability of the plant to extend is completely dependent on the ability of the plant to disperse its seeds.

Plants have very limited ability, they need vectors to carry its seed from one place to another.

The biotic and abiotic vector both are involved in carrying the seeds which helps in expansion of the trees.

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7 0
3 years ago
In a certain breed of plants, dark green is determined by the dominant gene 'G' and light green is determined by the recessive g
stealth61 [152]

Answer:

The answer is 300.

Explanation:

When we cross GG and gg, 100% of the offspring will be heterozygous. If the heterozygotes show 75% penetrance meaning that there is a 75% probability that the plant that has the G gene will actually show it in it's phenotype.

So that means that 75% of the offspring should have dark green color, which means that 300 plants will have the expected phenotype and 100 will not.

I hope this answer helps.

7 0
3 years ago
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