How can deforestation increase global warming?
A) It can decrease the total amount of photosynthesis as C3 plants are harvested.
B) It can increase the number of C4 plants, thereby increasing photorespiration.
C) It can cause runoff to become more acidic, thereby blocking the uptake of carbon dioxide.
D) It can increase the uptake of carbon dioxide by encouraging the growth of faster growing plants.
A
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Metamorphosis is
A. changing of one body form to another within a species, such as the change from an aquatic tadpole to a terrestrial frog. B. an intermediate condition, such as length of legs in mice between longer legs of some mice and shorter legs in others, a condition caused by Hox genes. C. the developmental changing of a scale to a feather. D. the evolutionary transition from fishes to amphibians.
DNA contains all of the following nitrogen-containing bases EXCEPT ____
a. adenine b. uracil c. guanine d. adenine e. thymine
Lignin is to cellulose strands as ____ is to
epidermal cells. a. cuticulin b. epidermerin c. pectin d. cutin e. chitin
Two possible end products of fermentation are ________ (as is produced by our muscle cells under anaerobic conditions) and ________ (as is produced by yeast under anaerobic conditions)
Fill in the blank(s) with correct word