Echinoderms and cnidarians

A) are both radially symmetrical.
B) both have three germ layers.
C) both have the sac body plan.
D) are both deuterostomes.
E) are both found in freshwater.

The "iron rule of organizing" says,

A) Never do for others what they can do for themselves.
B) Do unto others as you would have them do unto you.
C) Leave no stone unturned.
D) Don't put all your eggs in one basket.

An anticodon has the sequence GCG. What amino acid does this tRNA carry? What would be the effect of a mutation that changed the C of the anticodon to a G?

Autoimmune diseases such as arthritis become more common as people get older. "Autoimmune" means that the immune system

A) no longer produces antibodies.
B) destroys the body's own tissues.
C) is incapable of initiating phagocytosis.
D) produces T cells but no B cells.
E) protects itself.

Saccharomyces cerevisiae

A) grows inside living plants and siphons sugars
B) baker's yeast
C) human fungal vaginitis
D) black bread mold
E) infects trees and feeds on the decaying remains
F) soy sauce fermentation
G) edible mycorrhizal fungi

Hydrophobic molecules are ____ water.

A) attracted to
B) absorbed by
C) repelled by
D) suspended by
E) dissolvable in

Which of the following is NOT true about astrocytes?

A) They can wall off an injury site to prevent spread of inflammation.
B) They can prevent toxic substances from entering brain tissue.
C) They can release chemicals that promote formation of synapses.
D) They can aid in the regeneration of injured neurons.

Viagra is used to treat erectile dysfunction by prolonging the effects of ________ on blood vessels.

A) substance P
B) dopamine
C) GABA
D) nitric oxide (NO)

The endocrine system functions in ____.

A) conduction
B) contraction
C) hormonal control of body functioning
D) protection against disease
E) cell production

Four of the five answers listed below are amoebozoans. Select the exception.

A) amoebas
B) cellular slime molds
C) plasmodial slime molds
D) Dictyostelium
E) diatoms