A glandular secretion has been analyzed and indicates the presence of cytoplasmic components that include DNA and nuclear proteins. This indicates ________ mode of secretion.

A) holocrine
B) merocrine
C) autocrine
D) eccrine

The pollen grains of pine each consists of three cells.

How is a carnivore like an herbivore?

A) Both pass on all energy received to the next trophic level.
B) Both tend to produce nutrients for plants.
C) Both pass on much less energy to the next trophic level than they received.
D) Both are able to convert organic compounds to ATP without loss of energy.
E) Both feed on detritus.

The inner lining of the pericardial cavity is the ________ pericardium, whereas the outer part of the heart wall is called the epicardium or the ________ pericardium.

A) fibrous; parietal
B) visceral; fibrous
C) parietal; visceral
D) visceral; parietal
E) fibrous; visceral

Which amino acid, in mice, was discovered to play a role in memory?

A) glutamate
B) valine
C) serine
D) histidine
E) methionine

Which of the following explains the neural mechanism of an erection?

A) It is an autonomic reflex mediated predominantly by parasympathetic nerve fibers.
B) It is an autonomic reflex mediated predominantly by sympathetic nerve fibers.
C) It is a somatic reflex mediated predominantly by parasympathetic nerve fibers.
D) It is a somatic reflex mediated predominantly by sympathetic nerve fibers.
E) It is an exclusively voluntary action mediated by the cerebral cortex.

Osteomyelitis causes destruction of bone tissue primarily by

A) promoting inflammation and overstimulation of osteoclast activity.
B) inhibiting bone marrow production of osteoclasts.
C) suppressing the production of RANKL by osteoblasts.
D) stimulating apoptosis in osteoclast cells.