The white blood cell identifies the toxin produced by the pathogen and creates antibodies to fight the pathogen
Answer:
Pretty sure they're both A.
The phenomenon is called an equinox. More specifically when it is September it is called the autumnal equinox ,and when it is March it is called the vernal equinox. Hope this helped!
Parasitism
Explanation:
This relationship in which the heartworms gets nutrient from the host and in the process, the host eventually dies from infestation is known as parasitism.
- The organism that houses the heartworm is called the host
- The heartworm in itself is called the parasite.
- Parasitism is a positive - negative relationship in which one organism feeds on the other and causes harm to it in the process.
- Plasmodium falciparum is the parasite of malaria in man.
- In commensalism, one organism depends on the other without causing harm to it. Example is cattle and egret.
- Mutualism is a positive - positive relationship in which both organism derives benefits from the other. Example is lichen.
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