Some protozoans have special organelles called contractile vacuoles that continually eliminate excess water from the cell. The presence of these organelles tells you that the environment ________
A) is isotonic to the protozoan
B) is hypotonic to the protozoan
C) is hypertonic to the protozoan
D) contains a higher concentration of solutes than the protozoan
B
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____________________ assess the risks of developing, inheriting, or transmitting genetic disorders, and assist clients in understanding this information
Fill in the blank(s) with correct word
If the gene pools of allopatric populations did not differentiate much during geographical separation, then upon
reestablishing contact, the populations may interbreed and merge into one. This phenomenon is called ____.
a. species clustering b. divergence c. hybridization d. species fusion
e. convergenceWhat is the deep scattering layer? How was it discovered? What organisms commonly compose this layer?
What will be an ideal response?
The role of CAP in the lac operon is:
a. repression of RNA polymerase binding to the promoter. b. negative control of the lac operon. c. enhancement of RNA polymerase binding to the promoter. d. to inactivate the repressor by binding to its allosteric site. e. the activation of allolactose binding to the repressor protein