Drosophila melanogaster is a suitable research subject for developmental genetics studies because:

A) the fly is large enough for many surgical procedures.
B) many developmental control genes observed in the fly are also present in humans.
C) flies are not subject to genetic mutations.
D) while flies are small and easy to house, they require specialized and expensive dietary requirements.
E) the control of fly development is unique and unrelated to human development.

The greatest resistance to blood flow and therefore the greatest drop in pressure occurs as blood passes through the ________.

A) venules
B) large arteries
C) large veins
D) arterioles

Which of the following is a characteristic of primates?

A) nails rather than claws
B) a larger brain (cerebral) volume
C) opposable thumb and sometimes large toe
D) good hand-eye coordination
E) All of the answer choices describe characteristics of primates.

The extensor pollicis brevis moves the ________.

A) forearm
B) fingers
C) thumb
D) retinaculum
E) palm

Gasoline engines use energy more efficiently than cells.

Most intracellular receptors are what type of protein?

A) DNA
B) Steroids
C) Enzymes
D) Neurotransmitters
E) Transcription factors

Taste buds are not associated with ________ papillae.

A) foliate
B) filiform
C) fungiform
D) vallate
E) papilliform