An animal's metabolic rate is best defined as:
A. its overall rate of energy use.
B. the total amount of oxygen consumed by
an animal.
C. a measure of how quickly ATP is produced
by body cells.
D. a measure of how quickly food is digested.
E. its overall activity level.
A
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The "big bang" refers to
a. an event marking the beginning of the universe. b. the extinction of the dinosaurs. c. the inevitable end of the universe. d. the collision of the first galaxies forming the universe as it is today. e. the inevitable death of large stars
Which area, A, B, C, or D, represents the area of a boreal forest biome?
1.A
2.B
3.C
4.D
After a restriction enzyme cuts DNA into fragments and the fragments pair with complementary bases, the enzyme
____________________ is used to seal the gaps in the phosphate backbone. Fill in the blank(s) with the appropriate word(s).
Some photosynthetic bacteria use chlorophylls other than chlorophyll a
Indicate whether the statement is true or false