A scientific theory can be made by testing something.
Just like any ecosystem, a self-sustaining ecosystem needs light for primary production and nutrient cycling. The environment must find an ecological balance and be able to support the survival and reproduction of all organisms living inside it
Answer:
Common examples of ectoparasites include fleas, head lice and bed bugs.
Explanation:
If the Seeds fall near the parent seed then it causes competition for the parent seed.
