The fluctuation of the water level in the small arm of the water seal with respirations is called:

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations

What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b.diffusion c. endocytosis d. exocytosisc. endocytosis

which is an effect of short-term environmental changes? a) adaptation b) speciation c) extinction d) death (5 points)