Which of these is a source of lactose?

a. potatoes
b. milk
c. sugar cane
d. starch
e. sugar beets


Ans: b. milk

Biology & Microbiology

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Which of the following agents is a known cause of

mutations? a. nonionizing radiation b. ionizing radiation c. transposons d. chemicals in cigarette smoke e. all of these

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Why is flooding harmful to many plant species?

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A fisheries biologist tells you she is studying a cohort of salmon returning to their birth river. What can you infer about those salmon?

A. They are iteroparous. B. Most of them are one to three years old. C. They are the same age. D. They have a uniform distribution. E. They have a Type II survivorship curve.

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