Runoff of rainwater is minimized on
(a) hard surfaces like parking lots.
(b) compacted ground.
(c) level, spongy ground.
(d) steep slopes.
(b) compacted ground.
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Why is green fluorescent protein (GFP) very useful in visualizing fusion proteins in eukaryotes?
A. The reaction is only dependent on the presence of GFP and ATP. B. It is easily cloned and expressed in bacterial cells. C. The presence of just a few molecules of GFP fusion proteins can be sufficient to create fluorescence. D. It is derived from fireflies, which are easy to cultivate in the lab. E. The GFP protein recognizes and binds to fusion proteins, allowing the location of the fusion protein to be determined.
Fossils of the earliest known true hominins are
approximately how many millions of years old? a. more than 20 b. about 10 c. between 7 and 2 d. less than 0.5 e. none of these
High frequencies are detected by hair cells near the base of the cochlea
____________________ Indicate whether the statement is true or false.
Bone is what kind of tissue?