Option B is the correct answer
When a mutation has an effect that helps a species adapt to an environment, and specimens of both genders have it, it will end up taking over, causing evolution to gradually happen.
Answer:
Microscopic ecosystems consist of the organisms that are microscopic in nature or that which cannot be seen by naked eyes. They are mostly found in soil oceans and some are even living in association with plant and animals.
Macroscopic ecosystem consist of the organisms that can be observed with naked eyes.
They are mainly of 3 types:
- Terrestrial
- Aquatic
- Aerial.
The Americans colonies became free and independent states explanation: because they declared independence
