Valerie hypothesizes that frogs lay more eggs in warm water than in cold water. When Valerie designs her experiment, what should be the only variable that changes?
A.
frog species
B.
time of year
C.
water temperature
D.
water flow rates

the way that the mass of carbon can be conserved through cellular respiration is through a process/law called the law of conservation of mass which even tho it undergoes a process, mass is not be destroyed or changed

because they want 2 and yea

check for the pregnancy rating of drug. if its class c or d see if other alternatives