Answer: Option B
Explanation:
Usually in scientific experiments, at least one parameter is checked; here, the growth rate of wheat in two different conditions is being evaluated.
Hence, growth rate of wheat alone in pans A, B and C becomes the standard or referential control against which the experimental control (Wheat + clover) in pans D, E and F is evaluated, since both treatments are exposed to the same external conditions.
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The hypothalamus.
The hypothalamus links the nervous system with the endocrine system. It's part of the limbic system but can also synthesizes and secretes hypothalamic hormones. These hormones will either stimulate or inhibit the pituitary gland, which releases hormones that go<span> throughout the body to the glands and organs.
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it is found on the reccesive allele of the hemoglobin gene so c
Equal to all other objects around the earth it is unaffected due to earth's gravitational pull