The special kind of fault along where different ocean plates are moving laterally away from each other is called:
a. trench.
b. midocean.
c. transform.
d. arc.
e. convergent.
C
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Experiments called in vitro evolution or directed evolution have shown that:a
RNA can evolve into DNA. b. RNA can evolve to catalyze a variety of reactions. c. RNA can evolve into protein enzymes. d. DNA can evolve the double helix structure. e. RNA can evolve to self replicate.
Do you think that dialysis membrane is permeable to sucrose? Explain.
What will be an ideal response?
Given the plant species' name Claytonia virginica, what might you surmise about it?
a. It was named in honor of somebody named Clayton and was found it in Virginia. b. It grows on clay soils in virgin forests. c. It was described and named by someone named Clayton d. It is related to Ostrya virginiana. e. Absolutely nothing.
Estimates vary, but reasonable numbers for extinction rates suggest that extinction is occurring at a rate approximately
____ times above the normal background rate. a. 10 b. 100 c. 1000 d. 10,000 e. 1,000,000