Identify the interaction described below. one organism benefits while the other is killed. two species need the same resource, which is limited.

Parasitism

Explanation:

The kind of relationship in which one organism benefits to the detriment of the other is called parasitism. The parasites feeds on the other organism and it derives nourishment and nutrient from it. The host or the other organism suffers and does not benefit from the relationship. This relationship can lead to the eventual death of the host organism. Example is tapeworm and man.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.