1. Oxygen is transported to the blood in muscles via the circulatory system.
2. You eat and fully digest a piece of food through the digestive system.
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area.
Answer:
7 I think I really understand this
so first of all the word abiotic means non living and the word biotic means living
so an example is that say a rabbit has just drowned in a pond the water is no longer able to be drunken by other animals or else they might be affected by it or what ever the bunny happened
Choose one that has something along the lines of the pollution rising in a community.