The scientist given credit for first using the term "cell" to describe the basic unit of life using spun glass lenses is
A. Rudolf Virchow.
B. Louis Pasteur.
C. Theodore Schwann.
D. Robert Hooke.
E. Antony van Leeuwenhoek.
D. Robert Hooke.
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Sickle cell anemia is an example of
1.founder effect. 2.a genetic bottleneck. 3.heterozygote advantage. 4.genetic drift. 5.gene pools.
All of the following are used in making monoclonal antibodies EXCEPT which one?
A) mouse T cells from thymus B) mouse B cells from spleen C) specific antigen injected into mouse D) myeloma (cancer) cells E) cell culture media for hybridoma cells
In a hypothetical environment, fishes called pike-cichlids are visual predators of large, adult algae-eating fish (in other words, they locate their prey by sight). The population of algae-eaters experiences predatory pressure from pike-cichlids
Which of the following is least likely to result in the algae-eater population in future generations? A) selection for drab coloration of the algae-eaters B) selection for nocturnal algae-eaters (active only at night) C) selection for larger female algae-eaters, bearing broods composed of more, and larger, young D) selection for algae-eaters that become sexually mature at smaller overall body sizes
It is your responsibility to ________
A) follow up if test results do not arrive B) find a doctor you feel comfortable talking to C) read the label every time you open a new medication D) All of the above are true.