The Environmental Protection Agency uses fish species in the Chesapeake Bay as indicator species, why do you think the EPA would do that?

answer; /// i really don't understand your question/statement.but/lions do fight over territory and breeding rights, sometimes to the death,this is called( i hope this answered your luck

answer; ///i believe its: ///(embolus);

the answer is "a.) well–developed vascular system."

explanation:

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?