An interaction between two abiotic factors would be
a a bear catching a salmon
b lightning strikes a tree
c the sun warms the ground d a bee on a flower

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

Ausable water source is one that can be used by humans for drinking or agriculture. identify the water reservoirs as usable or unusable based on their current state. oceans rivers glaciers freshwater lakes groundwater