African cheetahs, which suffered a dramatic drop in population, rebounded in number to create a population of
unusually similar genetic animals. This is called

A) a bottleneck
B) genetic equilibrium
C) speciation
D) the founder effect

Punctuated equilibrium verses gradualism have long been contested as ways in which species evolve. choose the best evidence for gradualism.

Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?