Which of the following structures and functions is not associated with plasma proteins in a mammal?

a. pH buffering
b. Oxygen transport
c. Osmotic balance
d. Clotting agent
e. Antibody


Answer: b. Oxygen transport

Biology & Microbiology

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In the mammalian digestive system, what is the primary site of nutrient absorption?

A. pharynx B. stomach C. small intestine D. large intestine E. pancreas

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When imbalances occur in the sex ratio of sexual species that have two sexes (that is, other than a 50:50 ratio), the members of the minority sex often receive a greater proportion of care and resources from parents than do the offspring of the

majority sex. This is most clearly an example of _____. A) sexual selection B) balancing selection C) stabilizing selection D) frequency-dependent selection

Biology & Microbiology

If the age-specific fertility rate is such that 100 females of age class x would produce 50 offspring, what is the contribution of age class x to the overall population growth rate?

A. 50 B. 2 C. 0.5 D. 0.75 E. cannot be calculated with this information.

Biology & Microbiology

Which of the following primarily enters a plant somewhere other than through the roots?

A) carbon dioxide B) nitrogen C) potassium D) water

Biology & Microbiology