What is macroevolution? major changes in populations over a long time

genetic changes among and within populations

changes in a population's allele frequencies

minor changes in populations over a long time

Rue or false siblings look simila rbecause they each have some traits of their parents.

Aboy with an extra x chromosome probably has which of the following syndromes?

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.