The term "lipid" does not specify a particular chemical structure. Whereas one can write a general formula for an amino acid, nucleic acid, or protein, lipids are much more chemically diverse. Compounds are categorized as lipids based on their greater solubility in organic solvents than in water.
abiotic factors.
An abiotic factor is a non-living part of an ecosystem that shapes its environment.
Answer:
The flagpole shadow got longer each mouth as autumn turned to winter
Explanation:
It is likely to be a negative feedback. D is formed from B or C. D reduces the activity of the enzyme that converts A.