Most bacterial cells can keep from bursting in a hypotonic environment because of:

a. a stiff capsule.
b. a rigid cell wall.
c. a tough cell membrane.
d. an efficient water pump.
e. pumping large quantities of salts into the cell.


b

Biology & Microbiology

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Which of the following statements regarding plants' ability to sense their environment is not true?

A. Photoreceptors allow plants to sense light availability. B. Plants have chemical receptors that allow them to detect and respond to chemical gradients. C. Plants have mechanical receptors that allow them to sense the Earth's gravitational field. D. Plants contain touch-sensitive genes that allow them to respond to wind. E. Plants have difficulty detecting temperature and so, rely on light wavelengths.

Biology & Microbiology

Discuss how the world might be different without bacteria

What will be an ideal response?

Biology & Microbiology

The volume of air exchanged with the environment during an unforced breath is called

A) inspiratory reserve volume. B) tidal volume. C) vital capacity. D) inspiratory capacity. E) expiratory reserve volume

Biology & Microbiology

Animals that lack a vertebral column are known as

A. supinates. B. aspinates. C. retrogrades. D. invertebrates. E. inarticulates.

Biology & Microbiology