The secretion of tears, milk, saliva, and earwax is a function of which tissue?
A. Epithelial
B. Loose connective
C. Lymphoid
D. Nervous
E. Adipose
Answer: A
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Individual atoms on the surface of prepared samples can be observed by using the
A. phase contrast microscope. B. scanning electron microscope. C. dark-field microscope. D. atomic force microscope.
Which of the following is/are used to categorize fungal diseases?
A. The type of sexual spores formed by the infecting fungus B. The route by which the disease becomes established in the host C. The environmental source of the fungi D. The type of asexual spores formed by the infecting fungus
Which of the following statements is (are)
INCORRECT about ricin?
a. Ricin is a naturally occurring toxic protein. b. The use of ricin as a weapon is banned by the Geneva Convention. c. Ricin does not have an antidote. d. Ricin is obtained from the castor-oil plant. e. Ricin stops protein synthesis by blocking the activity of DNA
What mechanism would explain how fossils of the same organism can be found in parts of Africa and South America?
a. biogeography b. natural selection c. continental drift d. homoplastic features
e. convergent evolution