The effects of exercise on the circulatory system. This provides the muscles with the necessary oxygen and nutrients to provide the muscles with energy. During exercise strokevolume increases because: more blood is sent back to the heart due to the muscles squeezing blood in the veins. and I'll try to answer the other one just wait
Photosynthesis If you are talking about plants they use photosynthesis
The answer might be b....I’m probably wrong but I tried
Answer:
Transpiration
Explanation:
The surface of a leaf has many tiny pores, called stomata. The stomata allow carbon dioxide into the leaf so that photosynthesis can occur. They also allow water to leave the leaf by transpiration.This helps the plant to conserve water.