Within a single neuron, the direction an impulse follows is
a. dendrite >>> axon >>> cell body.
b. axon >>> dendrite >>> cell body.
c. dendrite >>> cell body >>> axon.
d. cell body >>> dendrite >>> axon.
e. cell body >>> axon >>> dendrite.
C
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The lymph nodes lie at the junctions of lymphatic vessels where they filter out microbes and antigens from the lymph.
Answer the following statement true (T) or false (F)
Monocots, but NOT eudicots, have
a. nodes. b. cotyledons. c. coleoptiles. d. hypocotyl hooks. e. flowers.
Which statement correctly characterizes bound ribosomes?
a) The most common location for bound ribosomes is the cytoplasmic surface of the plasma membrane. b) Bound ribosomes generally synthesize membrane proteins and secretory proteins. c) Bound ribosomes are enclosed in their own membrane. d) Bound and free ribosomes are structurally different. e) All of the above.
If a parent cell has a diploid number of 18 chromosomes before mitosis, how many chromosomes will the daughter cells have?
a. 9 b. 36 c. 18 d. 64 e. 27