How does the space between our fingers arise?
A. The cells die by apoptosis.
B. The cells die by necrosis.
C. The cells become part of the fingers.
D. Meiosis of the cells is blocked.
E. Mitosis of the cells is blocked.
A. The cells die by apoptosis.
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Why was it informative for researchers to study the proximate causation of Daphnia switching reproductive tactics in the laboratory?
A) Daphnia in the wild were genetically identical and the laboratory was the only place where Daphnia would reproduce sexually. B) Daphnia could not obtain enough energy in the wild to reproduce sexually. C) Daphnia were no longer available in the wild when the investigations occurred. D) Daphnia were never under high crowding conditions in the wild.
If we are to manage a population of game animals for the maximum number that can be harvested while not impacting the potential for the population to grow, where on the curve would we want to keep our population in terms of size or number of individuals?
1.at point A
2.at point B
3.at point C
4.at point D
Drug abuse usually involves those drugs which
a. are psychoactive. b. act on the central nervous system. c. bind to neuron receptors. d. change the chemical messages that neurons send and receive. e. all of these
How do you define a polymerase?
A. It is an enzyme that catalyzes the formation of nucleic acids. B. It is an enzyme that slows the formation of DNA. C. It is an adhesion molecule. D. It is an enzyme that blocks the formation of nucleic acids. E. It is a ribosome that catalyzes the formation of nucleic acids.