Answer:
efends the body from microorganisms that could cause it harm or even death. one of the additional functions of the immune system. helps maintain homeostasis by removing old and or damaged cells from the body. complex and broad range of defensive mechanisms that the human body uses to combat infections and diseases.
Explanation:
<span>The roots of plants are able to self-regulate the amount of water they take in. Therefore, by adding this amount of water, Stela is insuring that the plant will have as much water as it needs to grow. </span>
Answer:
1. nonliving matter that living organisms need to survive
2. bacteria
3. plants
4. animals
Explanation:
The most likely explanation for the variation is the offspring were produced from different combination of genes. A single pair of gold fish mentioned in the question means a male and a female gold fish. The two of them mated and contributed different genes to the fertilized fish eggs, this results in production of various body shape and colouration which is known as variation.