B.) The nucleus.....it controls everything.
Frog nostrils are slits while our nostrils are holes and come out a little bit
Yes animals and plants use oxygen in respiration to produce carbon dioxide. All living things carry out cellular respiration 24 hours a day.
The answer is photosynthesis. Hope that helps :)
Answer:
hope this makes sense
Explanation:
In an experiment, data from an experimental group is compared with data from a control group. These two groups should be identical in every respect except one: The difference between a control group and an experimental group is that the independent variable is changed for the experimental group, but is held constant in the control group.