7. The main part of a cell that maintains homeostasis is the
The nucleus
Cell membrane
The cytoplasm
The head

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems