Question

question 3 (1 point)
jody learned on the nature channel that the percentage of fish eggs that hatch for a given species can be affected by the temperature of the water. she is attempting to identify which water temperature will cause the highest percentage of fish eggs to hatch. the scientist sets up 5 identical aquariums at the following temperatures: 5℃, 10℃, 15℃, 20℃, and 25℃. she adds 50 chinook salmon eggs to each aquarium and records the number of eggs that hatch.
identify the dependent variable in this experiment.
○ a the number of fish that hatch
○ b the species of fish
○ c the water temperature
○ d the 5 tanks

Explanation:

A dependent variable is what is being measured and affected during an experiment. Here, the number of fish eggs that hatch is being measured and is affected by water - temperature. The species of fish is fixed (Chinook salmon), water temperature is the independent variable being manipulated, and the 5 tanks are just the containers for the experiment.

Answer:

A. The number of fish that hatch