Which one of the following occurs first in the process of hemostasis?
A) blood clotting
B) production of fibrin
C) formation of a platelet plug
D) vascular spasm
E) destruction of calcium ions
D
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How does the antiparallel polarity of DNA strands contribute most to the integrity of genetic information?
A) A DNA double helix cannot be broken or degraded. B) The antiparallel polarity of the strands means that replication occurs more quickly, decreasing the likelihood of DNA damage. C) Hydrogen bonding between strands is very stable, so DNA bases cannot be not damaged by environmental agents. D) Both antiparallel strands can be replicated continuously, which is more accurate than discontinuous replication. E) Each antiparallel strand can serve as a template to produce the other strand in the event of DNA damage.
In a survivorship curve, a type III species, like most insects and plants, is a species that has
A. a strong possibility of becoming extinct in a relatively short period of time. B. an equal probability of dying at any age. C. an extremely long life span. D. the highest probability of dying at a very young age. E. the highest probability of dying as it reaches its maximum life span.
The name "human" is an example of a
a. common name. b. scientific name. c. binomial. d. polynomial.
The mold used to produce blue cheeses such as Roquefort and Stilton reproduces sexually via ________
Fill in the blank(s) with correct word