Answer:
1. Survivors of the pesticide have a gene that protects them from it.
2. Then the survivors pass on the gene to their offspring,
3. Each time the pesticide is sprayed, the insects have a greater chance of survival.
The answer would be Igneous rocks, because of magma cooling
The number of organsims at each levels, so there are more producer than herbivores, more herbivores than carnivores and so on...
Kingdom Fungi. Mostly are single celled bacteria, they emit sunlight by means of photosynthesis that allows them to make food for themselves and also they have another food serve except for the sunlight and eats some single cell organism and that would call them as heterotrophic
Protections the ozone layer
Maintaining animal and human food chain
Preserving potable water and making efficient use of non renewable resources
