The net difference in electrical charge inside compared with outside the neuron____
Fill in the blank(s) with the appropriate word(s).
Occurs across the thin membrane whereby Vm changes occur with very little overall change in ionic concentrations within the neuron
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What is the function of tropomyosin in muscle cells?
A. Tropomyosin binds to actin molecules and brings about shortening of the muscles. B. Tropomyosin covers the myosin binding sites on the actin molecules, preventing contraction from occurring. C. Tropomyosin is the contractile unit of the muscle cell. D. Tropomyosin stores calcium.
Why is a pyramid of numbers for a forest sometimes narrow at the bottom?
a. Energy decreases as it passes through each trophic level. b. Energy increases as it passes through each trophic level. c. Individual producers are small and very numerous. d. Herbivorous insects vastly outnumber large producers. e. Large producers vastly outnumber insects.
Fossils are found only in
a. metamorphic rocks. b. igneous rocks. c. sedimentary rocks. d. crystalline rocks. e. radioactive rocks.
Extracellular matrix is comprised of:
What will be an ideal response?