Hypothesis: Daphnias can increase in population at a room
temperature, rather than a colder or warmer temperature.
Control group will be at a room temperature water. The experimental will be tested in cold and warmer waters.
Independent variable: change of water temperature.
The data will be the amount of growth in which the water fleas population increases or decreases, a bar graph would work.
I would have to say the second stage of life
The only reasonable answer I can see is
D. Ectothermic animals need the warmth before they can move around to hunt food.
The answers would be vacuole
