Proteins are made up of a chain of 20 amino acids
Biotic natural resources also include fossil fuels such as coal and petroleum which are formed from organic matter that has decayed. Abiotic: these resources come from non-living and non-organic material. Examples of these resources include land, fresh water, air, and heavy metals (gold, iron, copper, silver, etc.).
The answer to your question is D.
The convergent boundary or just convergent
A chromosome can be found in a molecules (which is in a cell).A chromosome is like a thread and it carries a living things genetic info.<span />
