3D paint on a computer or 3D printer hope it helps:)
This change in chromosome number is the result of B. Fertilization. Both of the individual gametes from the male and female combine together to produce a zygote or developing offspring that is diploid in most cases, and possess both sets of genetic content or chromosomal information, one from each parent.
Natural variation provided the phenotypes that natural selection then acted on, over time causing evolution
Answer:
Although habitats provide food, water and shelter that animals need, there is more to survival than just the habitat.