In an equilibrium population
A) population size cannot change.
B) allele frequencies do not change.
C) rates of gene flow are constant.
D) natural selection occurs.
E) mutation rates do not change.
B
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A unique characteristic of plant cells is their ability to ____
a. photosynthesize b. carry out cellular respiration c. continuously grow and generate new organs throughout their life cycle d. form defensive compounds e. protect themselves through movement
An internal checkpoint can be found where?
a. after anaphase b. after telophase c. during metaphase d. after the S phase
Accumulations of cells that divide uncontrollably are called ______
a. oncogenes b. proto-oncogenes c. neoplasms d. checkpoints e. descendant tumors
You step on something in the yard resulting in a puncture wound that does not bleed freely. Antigens from any microbes that entered the wound will most likely end up in the
A. appendix. B. lymph nodes of the groin. C. lymph nodes of the neck (cervical). D. lymph nodes of the armpit (axilla). E. spleen.