You are growing yams in a vegetable garden. When eating the yam, what modified plant tissue are you eating?

A. stem
B. leaf
C. root


C

Biology & Microbiology

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Compare and contrast receptor recognition between a hydrophobic and hydrophilic hormone

What will be an ideal response?

Biology & Microbiology

How does exchange of nutrients, gases, and wastes occur during pregnancy if maternal and fetal blood never mix?

What will be an ideal response?

Biology & Microbiology

In negative feedback, the variable being regulated is changed in the ________ direction, while in positive feedback the variable is changed in the ________ direction.

A. inhibitory; stimulatory B. decreasing; increasing C. same; opposite D. opposite; same E. negative; positive

Biology & Microbiology

Which of the following human activities has contributed to an increase in the number of bacteria having R plasmids?

A) nitrogen fixation by genetically engineered plants B) improper use of restriction enzymes in research and medical facilities C) increased carcinogen exposure from excessive fossil fuel burning D) heavy use of antibiotics in medicine and in agriculture

Biology & Microbiology