Answer:
"Biotic factors" is the awnser
Explanation:
Answer:
An ecological pyramid is a pyramid that illustrates the relations between living organisms at different levels
Answer:
Gas exchange between tissues and the blood is an essential function of the circulatory. The air contains oxygen that crosses the lung tissue, enters the bloodstream, and the alveoli are in direct contact with capillaries of the circulatory system. As water flows over the gills, oxygen is transferred to blood via the veins.
Explanation:
Seismometers and Seismographs
Apples are a fruit that is high in fiber, vitamin C and various antioxidants. It has vitamins and minerals.