Thew correct answer is amino-acids
Amino acids are essential to all life on earth. They are organic molecules comprised out of the amino (NH2) and acidic ( COOH) compound. The twenty amino acids can bound to one another with peptide bonds and form different complex structures called proteins. Proteins are important structural part of cells, enzymes and hormones, and without them the life as we know couldn't exist.
Answer and Explanation:
The factors that make up the environment are classified into abiotic or non-living and biotic or living. The abiotic factors are further classified into those that act upon the organism through the atmosphere and those that act through the soil. The abiotic factors include water, temperature, light, salinity and oxygen availability. The biotic factors include predation, competition and parasitism.
