Can somebody please give me an example of a Macromolecule before and after an environmental change? Please include its function and structure images too! I have this down here for reference!!

Individual macromolecules in coal structure are bonded to each other by a variety of forces and bonds to form a solid, three-dimensional coal structure. Aromatic clusters are linked by connecting bonds through oxygen, methylene or longer aliphatic groups, or disulfide bridges. The proportions of the various functional groups change with rank. Acid groups decrease early in the rank progression and other groups follow, leaving ether groups to act as cross-linking groups. Another type of linkage involves hydrogen bonds that, for example, hold hydroxy and keto groups together in solids.

Explanation:

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

light dependent reactions:

light independent reactions:

hope this !