Answer:
4
Explanation:
because it needs all the other stuff
People, coal, and gasoline are sources of CO2
Answer:
Phospholipids are amphipathic molecules. This means that they have a hydrophilic, polar phosphate head and two hydrophobic fatty acid tails. These components of the phospholipids cause them to orientate themselves, so the phosphate head can interact with water and the fatty acid tails can't, hence forming a bilayer
Explanation:
Chloroplast has evolved from photosynthetic bacteria