Here is a link that can help you.
http://study.com/academy/lesson/what-is-an-organ-system-definition-pictures-quiz.html
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.
I hope this helps
Cyclobenzaprine is a drug that produce an anticholinergic response in the body, which means that is blocks neurotransmitters from the nervous system to prevent things like muscle spasms. but due to the neurotransmitters being blocked, it can cause these kinds of side effects because the brain can no longer control these things.
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They engulf using their pseudopodia