The most efficient way to increase essential amino acids in crop plants for human consumption would be to _____
A) select for higher yield of the desired amino acids
B) increase the amount of fertilizer used on fields
C) use 20-20-20 fertilizer instead of 20-5-5 fertilizer
D) engineer nitrogen-fixing nodules into crop plants lacking them
E) increase irrigation of nitrogen-fixing crops
Answer: A
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Self-recognition is based on T cell receptors recognizing:
a. MHC markers b. perforins c. complement d. naive B cells e. antibodies
On the back of your skull you can feel a small bump, below which is an opening where the spinal cord enters the skull. The location of this opening toward the bottom of the skull is significant in evolutionary biology for what reason?
A) It allowed for the hominin brain to grow much larger than other primates. B) It provided greater protection for the spinal cord. C) It occurred as a result of the change to a bipedal stance. D) This change was necessary for the increase in size from prosimian forms to anthropoid forms.
The government of Iran is ruled by religious figures and they ensure that citizens adhere to Islamic teachings. Iran is a _______ law system:
a) theocratic b) common c) civil d) traditional
Which of the following function in agglutination?
A) IgA antibodies B) IgG antibodies C) IgE antibodies D) IgD antibodies E) IgA and IgG antibodies