Remember that a biotic factor is a living component in an ecosystem that affects the population of another organism. So that means that the answer is B.
The organisms belonging to phylum Nematoda are roundworms
When cell division is not regulated it can cause a malignant rumour called cancer , radiation is used in chemotherapy to kill the cancer, tumoutsd can also be benign
Answer:
Two species (B & C) are more closely related to one another than either one is to a third species (A) if, and only if, they share a more recent common ancestor with one another (at Time 2) than they do with the third species (at Time 1).
Explanation:
The immune system.
The immune system acts as a defense system of the body. It fights against bacteria, viruses and any other disease causing pathogens. Some chemicals can weaken the immune system and make them vulnerable.
