Aspecies of frog slowly dies off because it cannot compete with the toads and lizards that share its ecosystem. this is an example of
answer
adaptive radiation.
background extinction.
mass extinction.
punctuated equilibrium.

From which layer of atmosphere is the top layer of the thermosphere? a.troposphere b. stratosphere c.mesosphere d.exosphere hurry me i will give a braineilst

Which of the following are true about bacteria? select all that apply. bacteria are all around you. bacteria can or harmful. bacteria are multicellular organisms. bacteria can only be found on the human body.

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.