Explanation:
Genes are located on chromosomes, which are large pieces of DNA contained in a eukaryotic cell's nucleus.
In secondary succession, the pioneer species are plants that are adapted to exploit disturbances rather than bare rock. They typically include plants such as grasses, birch trees, and fireweed. Organic matter from the pioneer species improves the soil so other trees and plants can move into the area.
5 is adaptation, 7 is transpiration
Enzymes are biological catalysts. Catalysts work by lowering the amount of energy required to set off a chemical reaction.
