The risk of developing cancer can be decreased by:

a. increasing the amount of nitrates in the diet.
b. exposing questionable tumors to x-rays.
c. avoiding smoked, and salt-cured foods.
d. examining the breasts and testes every two years.
e. exposing neoplasms to UV radiation.


c

Biology & Microbiology

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A 9:7 ratio indicates incomplete dominance

Indicate whether the statement is true or false

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Which of the following statements is NOT true of lophophorates?

A. Their tentacles serve both in respiration and in feeding. B. They have a U-shaped digestive tract. C. They have a true coelom. D. There are three phyla of them: Phoronida, Bryozoa, Brachiopoda. E. They are parthenogenetic.

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Invertebrates on land use __________ or __________ systems for gas exchange. Fill in the blank(s) with the appropriate word(s)

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