Mei wants to study whether heart rate increases more during certain exercises than during others. she designs an experiment
to test the heart rates of classmates in the moming and in the evening for three days, immediately after doing jumping jacks
doing push-ups, or running in place. what is the dependent variable in this experiment?
o classmates
o type of exercise
heart rate
o time of day

Which material is commonly used as a culture medium for living cells

Pls the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.

The table below shows data for a population of fish in a pond. fish body color # of fins scales? tail shape a silver 4 yes fan b pink 4 yes flat c black 4 yes fan d orange 4 yes flat e orange 4 yes fan f silver 4 yes flat which of the above characteristics would be most in developing a classification system for the fish? a. body color and tail shape b. presence of scales and tail shape c. body color and number of fins d. number of fins and presence of scales