When can ice formation destroy plant cells?
A) as water flows into cells via osmosis as the temperature drops
B) as adhesion increases inside xylem tubes
C) as jagged ice crystals puncture cell membranes
D) as cells are poisoned by dissolved "antifreeze" solutes
C
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Match the following items with the correct phrases.
_______1. The disaccharide found in MacConkey agar. _______2. A pentose. _______3. A disaccharide composed of glucose plus fructose. _______4. Another name for dextrose. _______5. A hexose. a. sucrose b. lactose c. glucose d. ribose e. maltose
Gas exchange in mammalian lungs occurs in the
a. villi b. anterior air sacs c. posterior air sacs d. bronchioles e. alveoli
An infectious disease with a prevalence greater than expected for a population is said to be ____
a. sporadic b. endemic c. an epidemic d. a pandemic
What is the vacuole
What will be an ideal response?