Which of the following is a gastropod?

(a) clam.
(b) snail.
(c) squid.
(d) octopus.


(b) snail.

Biology & Microbiology

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Which of the following contraception techniques consists of avoiding intercourse during the time of

the month when the egg can be fertilized?

a. withdrawal b. tubal ligation c. dilation and evacuation d. rhythm method e. time of the month method

Biology & Microbiology

The neuron transport proteins that maintain the resting membrane potential are ____.

A. sodium-phosphorus passive transporters B. sodium-potassium pumps C. sodium-chlorine gated channels D. phosphorus-calcium pumps E. phosphorus-chlorine gated channels

Biology & Microbiology

Joseph Lister reduced the incidence of wound infections in health care settings by using chlorinated lime water

Indicate whether the statement is true or false

Biology & Microbiology

A chemical reaction is defined as spontaneous if there is a net loss of free energy during the reaction process. However, spontaneous reactions do not always occur rapidly

Favorable biological reactions require ______________ to selectively speed up reactions and meet the demands of the cell. (a) heat (b) ATP (c) ions (d) enzymes

Biology & Microbiology