The answer is diatoms.
The organism is unicellular, but contains cell organelles, so it must be in the domain Eukaryota. It also has chloroplast, so it could be some plant or algae, but since it is unicellular it must be algae. Among the algae, diatoms are specific for their <span>glass-like cell walls with sculpturing.</span>
Provided that there's no diagram, most molecules have particular areas on the molecules, called the "active area" that act as a lock to a particular substrate's molecular structure, providing the key.
An enzyme's active area is only able to be "unlocked" by a certain substrate's "key".
An example of Habitat Fermentation is building several roads through wetlands.
Answer: Option A
<u>Explanation:</u>
Habitat Fermentation is defined as the process by which huge natural habitat will gets divided into many isolated and smaller patches of habitat which can result and affect many living organism.
They are mainly caused due to direct human activities such as urbanization and construction of road and railways tracks in natural habitats. Thus we can conclude that one of the best example for Habitat Fermentation.
Just getting points. sorry, not that far in science!