Based upon today's molecular evidence, Homo sapiens appear to have originated from:

A) Europe.
B) Indonesia.
C) East Africa.
D) South Africa.
E) South America.

Which vascular plants have seeds?

A) ferns
B) club mosses
C) whisk ferns
D) gymnosperms
E) horsetails

Which germ layer is the epidermis derived from?

A) Ectoderm
B) Mesoderm
C) Endoderm

Which type of hormone-receptor action allows insulin to move glucose into cells?

A) Activation of cGMP
B) Activation of adenylate cyclase
C) Direct alteration of intracellular enzymes
D) Phosphorylation of intracellular proteins

The reticular region of the dermis consists of ________ tissue.

A) areolar connective
B) dense regular connective
C) dense irregular connective
D) adipose
E) stratified squamous epithelial

Afferent fibers terminating in the hypothalamus provide input from the

A) visceral organs.
B) taste receptors of the tongue.
C) limbic system.
D) the prefrontal cortex of the cerebrum.
E) All of the choices are correct.

All of the following are possible symptoms of insulin shock except

A) rapid heart rate.
B) hyperglycemia.
C) mental disorientation and/or anxiety.
D) impaired vision.
E) sweating.

Hormones

A) are generally released into interstitial fluid.
B) help regulate the function of all the body systems.
C) influence the metabolism of cells.
D) are an essential component of the body's response to stress.
E) All of the answer choices accurately describe hormones.

Clusters of gray matter deep within the brain are called ________.

A) cortices
B) nerves
C) ganglia
D) nuclei

The respiratory center of the brain (taking into account input from chemoreceptors, pulmonary stretch receptors, and higher centers of the brain to determine respiratory output) is an example of a ________ circuit.

A) converging
B) diverging
C) parallel after-discharge
D) reverberating