Answer: 1. founder effect
2. evolution
3. natural selection
4. species
5. geographically isolated
Explanation: Good luck! :D
Topsoil is the most fertile soil layer for plants.
Answer:
what is the question you basicly just gave us a paragraph to comment on
Explanation:
The answer is a simple radial nervous system.
Echinoderms do not have brains. Around their mouth, they have central rings from which nerves radially run into arms and along the body. Movement is controlled by the branches of those radial nerves.
A pedigree<span> is a diagram showing genetic relationships between members of a family. It is used to analyze patterns of inheritance for specific genetic traits.
i'm not sure how to help you with the other part of the question</span>
