Which of the following is NOT true about the
placenta?
a. it begins forming in the third week
b. maternal blood mixes with fetal blood in
the placenta
c. the placenta produces HCG
d. the placenta develops from the chorion
e. all of these are true about the placenta
B
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A binge-purge disorder characterized by excessive consumption followed by intentional vomiting and
possible ingestion of a laxative is a. anorexia nervosa. b. bulimia. c. obsessive compulsive disorder. d. oppositional defiance disorder. e. passive-aggressive disorder.
Identify which of the following statements is not true.
- When ATP becomes ADP + P, the amount of energy released is enough for a biological purpose. - ATP is formed when energy is released during cell respiration. - ATP is comprised of a sugar, base, and two phosphate groups. - ATP contains the energy form used for cellular work. - ADP is low in potential energy.
Which one of the following expressions from the logistic equation (dN/dt) = rN ((K - N)/K) represents the proportion of unused resources remaining for use by the population?
A. (K - N)/K B. The biotic potential (rN) C. The population size (N) D. The growth rate (dN/dt) E. The carrying capacity (K)
Ampicillin, like penicillin, must be administered by injection because it is rapidly degraded in the stomach and cannot, therefore, be given orally.
Answer the following statement true (T) or false (F)