the experiment part is when you actually test your hypothesis in a real for example if your hypothesis is that coke will shoot 10 ft into the air after you drop a mentos in it, then your experiment would involve actually dropping the mentos into the soda to see how high it goes.
a reason why early living organisms on earth could not have survived on the surface was because the lack of an ozone layer. the answer is number 1.
hope this : )
because plants give energy to the primary consumers, or whatever shiii idk, and plants don't eat anything so they my as well be first , cause they're just that cool
hello i think the answer is adrenal gland hope this