It is choice B.
Haploid cells contain one copy of genetic information. (ex sperm, egg)
Diploid cells contain two copies of the genetic information. (ex muscle, bone brain, eye, etc.)
Answer:
Washing hands daily and wear clean clothes.
Explanation:
Washing hands daily and wear clean clothes are the methods which prevent the spread of microorganisms and when exposed to microorganisms in the laboratory, we will have to use disinfectant in order to remove the microbes so that the solution or reactions are safe from the contamination. There are many methods such as sterilization as well as using chemicals is responsible for the removal of microorganisms.
The answer is B.
An ecosystem is community plus nonliving components in an area.
An ecosystem includes both biotic and abiotic factors of an area that organisms interact with. Examples of abiotic factors would be soil, water, sunlight etc.
Cigarette smoking decreases speed in track runner, due to the fact that their lungs have black spots. Making it harder for them to breathe. And harder to breathe causing slowing in speed.
D prevents repeating. experiments have to be repeated to be reliable.
