The separation of sister chromatids during anaphase I of mitosis is known as chromosome __________
A) cytokinesis
B) karyokinesis
C) crossing over
D) synapsis
E) disjunction
E
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At the level of the cell, how is osmoregulation achieved?
A. by the movement of solutes across membranes B. by balancing the input and output of water and electrolytes C. by changing the overall permeability of membranes D. by bringing water in through the skin E. None of these choices accurately describe how osmoregulation is achieved at the level of the cell.
How is the wavelength of light measured?
a. the distance between the crest and the trough of a wave b. the distance between two consecutive waves divided by two c. the distance between consecutive crest points of a wave d. the distance the wave travels in a given time period.
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
In the eighteenth and nineteenth centuries, people increased Earth's capacity to support more humans through ________ advances
A) demographic B) social-medical C) industrial-agricultural D) psychological E) cultural