Which statement is true of deuterostomes?
A. The second opening into the embryo becomes the anus.
B. They have two tissue layers.
C. The second opening into the embryo becomes the mouth.
D. The first opening into the embryo becomes the mouth.
E. They are typically radially symmetrical.
Answer: C
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Which part of the neuron is responsible for basic cellular maintenance functions?
A. axon B. dendrite C. soma D. myelin sheath E. axon hillock
Which of the following is false about plant
hormones? a. They bind to receptors on target cells. b. Their mechanism of action is completely different from that of animal hormones. c. Signal transduction may influence a metabolic pathway. d. The plant response may depend on a change in gene expression. e. Signal transduction may involve shape change by a receptor.
The _____ is a thin membrane which, if present, partially covers the vaginal opening.
A. mons pubis B. perineum C. clitoris D. hymen
Which of the following is true of cellulose?
A) Animals store glucose as cellulose. B) Plants store glucose as cellulose. C) Plants' cell walls are made up of cellulose. D) Plants store amino acids as cellulose.