Answer:
The reactants are the Products of Photosynthesis which is glucose and oxygen.

Explanation:
Answer:
The answer is (C) studying how is has been affected by erosion
Explanation:
1. Well developped offspring, and portable baby food despencing. Mamalian young are generally quite well developed when they are born, and the parent does not need to find any specific types of food for the new born since the mother already provides te perfect nutrition.
2. Internal heating allows mammals to remain quick and active in cold climates.
3. Fur is really effective and cheap to produce.
Answer:
c: cohesion
Explanation:
This cohesive relationship between the systems is known as pulmonary circulation. It helps the circulatory system in pumping the blood from the feet to the heart.