Place the following parts of a reflex arc in the correct order beginning with the sensory receptor.
(1) Motor neuron
(2) Interneuron
(3) Effector
(4) Sensory neuron
(5) Sensory receptor

A) 5, 1, 2, 3, 4
B) 5, 3, 2, 4, 1
C) 5, 4, 3, 2, 1
D) 5, 2, 3, 4, 1
E) 5, 4, 2, 1, 3

The term mass describes the material that makes up all living and nonliving things.

Damage to which of the following cranial nerves might result in death?

A) Facial nerve
B) Vagus nerve
C) Trigeminal nerve
D) Glossopharyngeal nerve
E) Optic nerve

Which of the following is true about cones?

A) They detect color of an object.
B) They detect detail of an object.
C) They require high-intensity light.
D) Rods are more numerous in the retina than cones.
E) All of the answer choices are true.

Epiphytes have ____ that anchor the plants to the surface on which they grow.

A) pneumatophores
B) buttress roots
C) prop roots
D) aerial roots
E) root hairs

Which of the following are mechanisms to prevent food from entering the larynx? (Check all that apply.)

A) Contraction of the thyroid cartilage, pinching closed the larynx
B) Movement of the tongue over the inlet to the larynx
C) Closure of the glottis
D) Tipping of epiglottis over glottis

One side effect of anabolic steroids to increase muscle bulk is that the testes shrink. Since the testes also produce testosterone, what is the likely mechanism for this shrinkage?

A) The anterior pituitary assumes overproduction and drops the level of hormones that cause the testes to develop.
B) Artificial testosterone causes a negative feedback to the anterior pituitary that in turn tries to stimulate ovary development.
C) Testosterone has a negative feedback effect directly on testes.
D) Artificial testosterone is toxic to testicular cells.
E) Excess testosterone actually backfires and reverses the effects of puberty.