In which part of a sponge's body does fertilization occur?
A. the ostium
B. the mesohyl
C. the spicule
D. the spongin
E. the amoebocyte
B. the mesohyl
You might also like to view...
Functionally speaking, a nerve impulse is
a. a flow of electrons along the outside of the plasma membrane of a neuron. b. the movement of cytoplasmic elements through the core of the neuron. c. a series of changes in membrane potential. d. a lengthening and shortening of the membrane extensions of a neuron. e. a turning on and off of the sodium-potassium pumps of a neuron.
The synthesis of an RNA molecule from a DNA template strand is called
a. replication. b. translation. c. transcription. d. DNA synthesis. e. metabolism.
If you were to view Staphylococcus, you would expect to see clusters of round cells.
a. true b. false
Which of the following is not a characteristic of an endotoxin?
A. Neurotoxic B. Heat stable C. Moderate toxicity D. Weakly immunogenic