what percent of americans have severe allergies?

What will be an ideal response?


10%

Biology & Microbiology

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Planktonic organisms that spend part of their lives in planktonic form and the rest of their lives as either benthos or nekton are called:

What will be an ideal response?

Biology & Microbiology

The melting of ice is an example of a(n) ________ process

Fill in the blank with correct word.

Biology & Microbiology

When the action potential begins, sodium gates open, allowing Na+ to cross the membrane. Now the polarity changes to

a. negative outside and positive inside b. positive outside and negative inside c. there is no difference in charge between outside and inside d. any one of these could be correct

Biology & Microbiology

Turgor pressure is observed when a plant cells environment is ________.

A. hypotonic B. osmosis C. hypertonic D. isotonic

Biology & Microbiology