In organisms, the ability to control osmosis depends on the properties of the plasma membranes of individual cells. Based on their ability to permit the free movement of water and some solutes, these membranes are best described as
(select all correct choices):
A. impermeable.
B. permeable.
C. semipermeable.
D. diffusible.
E. impervious.
C
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Because of the low penetration power of electrons, samples for transmission electron microscopy must be extremely thin. A(n) ________ is able to cut sections as thin as 20 nm
Fill in the blank with correct word.
The human body’s “thermostat” is the hypothalamus
____________________ Indicate whether the statement is true or false.
Infections in which the pathogen is distributed throughout the body are referred to as "generalized infections" or __________.
A) zoonoses B) local infections C) systemic infections D) focal infections E) emerging infections
Which fungi produces toxins (including LSD) that can cause convulsions, hallucinations, and death if consumed by a person?
A) Aspergillus B) Deadly night shade C) Chytrid fungi D) Candida albicans E) Claviceps purpurea