An easy way to remember the signs of skin cancer is this memory trick suggested by the American Cancer Society: ________

Fill in the blank(s) with correct word


ABCD

Biology & Microbiology

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The lens of the eye loses _______ with age and cannot change from viewing distant objects and close objects as readily as before.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The most important stimulus in the control of respiration is the concentration in the blood and other body fluids of

a. oxygen (O2). b. carbon dioxide (CO2). c. hydrogen ions (H+). d. nitrogen (N2).

Biology & Microbiology

Which of this organisms belongs to the stramenopiles , a large, diverse group of protists?

Biology & Microbiology

Why are radioactive isotopes useful in scientific research?

a. Because they are not readily incorporated into biological reactions. b. Because they are difficult to detect in small amounts but living cells cannot distinguish them from the corresponding stable isotopes c. Because they can be used as tracers in particular atoms and molecules through metobolic pathways d. Because they decay sponantaneously and give off energy and subatomic particles.

Biology & Microbiology