Which event occurs in meiosis, but not mitosis? A. Separated chromatids move to opposite ends of the cell.
B. All chromosomes align along the center of the cell
C. Homologous chromosomes pair and "cross over."
D. The parent cell divides to form genetically-identical daughter cells.

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.

What is a group of organisms that are closely related and share similar characteristics

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent