1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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:

You might be interested in
The transfer of energy from one organism to the next in an ecological community is called a?
ICE Princess25 [194]
In physics, it’s called energy-transfer
8 0
3 years ago
If a hemoglobin molecule comes into close contact with a respiring cell, the presence of CO2 in the environment will cause hemog
lapo4ka [179]

Answer:

No, when the concentration of carbon dioxide is high, such as in peripheral tissues, CO2 binds to hemoglobin and the affinity for O2 decreases, causing it to release.

Explanation:

The O2 molecule is reversibly combined with the heme portion of the hemoglobin. When the partial pressure of O2 is high, as in the case of pulmonary capillaries, for example, the binding of O2 to hemoglobin and the release of carbon dioxide are favored, this is known as the Haldane effect. If, on the contrary, when the concentration of carbon dioxide is high, such as in peripheral tissues, CO2 is bound to hemoglobin and the affinity for O2 decreases, causing it to release, this is known as the effect Bohr.

8 0
3 years ago
Can somebody finish these last three questions(20 points)
Crank

Answer:

the two variables are 27 and 30

the unit for time is second

the unit for temperature is kelvin

Explanation:

hope this will help you

3 0
2 years ago
Which of the following is a source of genetic variation in sexually-reproducing organisms?
Simora [160]
A mutation is one form of genetic variation.
7 0
3 years ago
Read 2 more answers
An rna molecule is synthesized in which direction?.
tester [92]

Answer:

5'  -->  3'

Explanation:

New nucleotides are added to the hydroxide group on the ribose sugar side.  That is the 3' side.

7 0
2 years ago
Other questions:
  • Because it has no introns, researchers prefer to use ____ when working with human genes.
    6·1 answer
  • The brain's ability to physically change in response to environmental stimuli is called
    14·1 answer
  • QUESTION 2 The parts of the scientific method have to be followed in one specific order in all investigations. True False
    5·1 answer
  • Carbon dioxide is released by _____ and_____?
    13·1 answer
  • Which of the images below depicts a healthy reef ecosystem? <br><br> Image A, B, C, or D?
    8·1 answer
  • ATP synthase is powered or driven by ______ flowing through it, in order to make ATP molecules.
    15·1 answer
  • The human body uses specialized biomolecules to speed up chemical reactions. These are called enzymes. Without enzymes, the reac
    7·1 answer
  • What things make profession of different level​
    5·1 answer
  • Are examples of carbohydrates
    11·2 answers
  • Describe an experiment that would allow you to determine if it is warmer inside or outside the playhouse by using two similar cu
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!