Exercises that improve cardiovascular fitness improve body composition, because they
a. increase body fat
b. increase body tissue
c. release energy
d. store energy

Me . based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

Describe two recent or ongoing space missions.

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen