<span>Cells need a source of energy, they get this energy by breaking down food molecules to release, the stored chemical energy.This process is called 'cellular respiration'. The process is happens in all the cells in our body. Oxygen is used to oxidize food, main oxidized food is sugar(glucose).</span><span>Jan 14, 2009</span>
Nitrogen Fixating bacteria ( such as cyanobacteria or clostridum) can convert gaseous nitrogen in the air into amonia, a compound that organism can use to make amino acid and other nitrogen-containing organic molecules
The first level consumer would get 50 units of energy
at each level of consumers it goes down by 10%
Ribosomes are where protein synthesis occurs.
B.
Answer: To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.