The resting potential across a typical neuron
membrane is approximately __________ inside
relative to outside.
a. -70 microvolts
b. -70 millivolts
c. -70 volts
d. +70 millivolts
e. +70 megavolts
Answer: b
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Chromatin condenses into chromosomes and the mitotic spindle begins to form during ____
a. interphase b. prophase c. metaphase d. anaphase e. telophase
Many sea snakes have adapted to a completely marine existence. What are 3 adaptations of sea snakes that have allowed this lifestyle?
What will be an ideal response?
Segregation is a source of variety in gametogenesis because
A. it is during segregation that chromosomes from the parents are separated at random into the gametes. B. crossing-over during segregation mixes genes from the parents into the offspring. C. all the genes from one parent are separated from the other parents. D. new gene combinations are formed by the parent.
Changes in temperature affect organisms in temperate climates by altering the following, EXCEPT
A. animal migration times. B. breeding seasons. C. coral reef building. D. leaf budding time. E. flowering times.