Answer: "mutualism" (a type of "symbiosis"/ or "symbiotic relationship" between two organisms; in which each of the two interacting organisms benefits from each other.
Sometimes called. "mutualistic symbiosis" , or "symbiotic mutualism" .
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Answer:
Red Queen hypothesis is related to evolution process, which states that organisms should evolve, adapt to the living environment and reproduce to increase in number so as to survive.
Explanation:
Red Queen hypothesis often termed as Red Queen race or Red queen effect is a hypothesis guiding the evolutionary mechanism. It is supported by data since the time of Charles Darwin. As if we look into the paleontology, it is clearly evident that the organisms which fails to adapt and undergo evolution accordingly, had shown higher rates of extinction. Also this hypothesis, supported sexual reproduction as opposed to asexual reproduction in primitive time. Numerous researches and data regarding fossils, that are remains of extinct species along with ancestral linkage with some of today's species well justify the hypothesis.
A. red blood cells. They carry oxygen around the body, not protect from pathogens.