What roles do prokaryotes play in the living world?
a. decomposers
b. producers
c. nitrogen fixers
d. all of the above

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection

What is the next step in muscle contraction after the actin changes shape? (apex)

Brainliest ! which would require more force to move or slow down between a bowling ball and a soccer ball? explain why?