The answer is Vascular tissue
Diffusion is the correct answer. Air freshening molecules spread through the room through random diffusion.
Answer:
The variation might occur in the population that leads to the evolution of the species. This variation may occur due to natural selection, mutation or recombination.
The variation might change the genotype and allelic frequency of the population and might also change the phenotype of the individual in the population. The breeding adults of the left mouthed in 1981, 1987 and 1990 shows variation and was equally opposite phenotype which is more common in the population.
The cytoplasm splits in two and the cell divides
A rainforest ecosystem would have a more high species riches. There are vast resources such as trees and plants that contribute to animal life. More animals live in these ecosystems because of the environment itself.
A dessert ecosystem would have a low species riches. There is little plant life and low resources for survival. Only animals that have adapted to this environment have a high species rate.
