For the lactose operon, the CRP-cAMP is a(n):
A. inducer.
B. promoter.
C. activator.
D. repressor.
E. operator.
C
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An embryo develops from the
a. blastomere. b. gastrula. c. syncytiotrophoblast. d. trophoblast. e. inner cell mass.
Which of the following is a process that is unique to (or only found in) humans?
A. culture B. language C. conciousness D. All of a-c are unique to humans. E. None of a-c are unique to humans.
Many freshwater invertebrates eliminate ammonia by...
a) simple diffusion across the skin b) simple diffusion across the gill membranes c) converting it to uric acid and eliminating it with solid wastes d) converting it to urea and eliminating it in their urine
In a normal cell cycle, if a cell is damaged or unhealthy, it will be removed by a process called _______________.
Fill in the blank(s) with the appropriate word(s).