The conducting zone, or portion of a neuron that sends chemical signals to other cells, is also called the ________
a. trigger zone
b. dendrites
c. cell body
d. axon terminal
d
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In plants with only primary growth, the epidermis is not
A. one cell thick. B. the outer protective coating of the plant. C. produced by the protoderm. D. covered by a waxy layer that constitutes the cuticle. E. covered with bark.
What event most directly precedes the activity illustrated in Figure 40-5?
a. depolarization
b. an action potential
c. acetylcholine release from a motor neuron
d. release of calcium from the sarcoplasmic reticulum
e. release of ADP from the myosin head
The carrying capacity of an area is
A. the optimum number of different species that can grow and reproduce there. B. the optimum number of individuals of a species that can survive and reproduce. C. the minimum number of individuals of a species that can survive and reproduce. D. the number of individuals of a species found in an area.
What is the membranous grana made up of?
What will be an ideal response?