Aclose relationship between two species that benefits at least one of the species is called
a. natural selection.
b. symbiosis.
c. adaptation.
d. competition.

Which is the function of the hypothalamus in thermoregulation? answers: -sensor -effector -stimulus -intergrating center it's either a or c i believe

In which way are mercury and venus similar? they both rotate from east to west. they are both small and rocky. they both have thick atmospheres. they both are similar to earth in structure.

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above