The insects clustered around the light is an example of A response to a stimulus. The insects are attracted to the light, so the flocked towards it.
Microevolution - Allele frequency changes in a certain population over an amount of generations, it can also be simply described as "an evolutionary change in populations".
Answer:
it allows only some materials to pass through and leave the cell.
The answer is A. Fertilizer
The other answer choices don't make sense Herbicide is a poison that kills plants, Pesticide is an insect killer, while a Growth Hormone is designed to help the plant grow not to put nutrients into the soil.
In my opinion it is diluted and formed into concentrate and is then divided into proportion.
