An important difference between plants and algae is that a __________ covers the aerial portion of a
plant.
a. chlorophyll.
b. waxy cuticle
c. lignin
d. stomata with guard cells
e. cellulose
B
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The woman scientist who made a major contribution to the discovery of the structure of DNA was _____________________
Fill in the blank(s) with correct word
Excessive UV light exposure causes problems with what skin protein?
a. collagen b. elastin c. keratin d. collagen and elastin e. elastin and keratin
Cells generate ATP from the release of chemical energy from nutrients, whereas chlorophyll-containing organisms generate ATP via the light-dependent reactions of photosynthesis as well as from the oxidation of nutrients.
Answer the following statement true (T) or false (F)
One of the proposed solutions to global warming is to grow a large number of trees. This could be effective because:
A) plants are the base of all ecological food chains. B) trees would move carbon from CO2 in the atmosphere to organic molecules. C) plant carbon is different from atmospheric carbon. D) the gross primary production of trees moves CO2 into soil. E) when decomposed, plant carbon is impossible to convert back to CO2.