GROWTH DEVELOPMENT CHILD
GROWTH AND DEVELOPMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cockroach
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butterfly
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horses
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frogs
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Detailed explanation-1: -Many endoparasites have a complex life cycle that involves two hosts, and the parasite must spend time in both to complete its life cycle. Take, for example, the protozoan parasite Plasmodium, which causes malaria. Plasmodium must spend time in humans and in an Anopheles mosquito to complete its life cycle.
Detailed explanation-2: -Parasitic worms (helminths) typically have complex life-cycles (CLCs) in which they infect multiple hosts in succession before reproducing. Seal worms (Pseudoterranova spp.) are an extreme example-they infect up to five different hosts before reproducing!
Detailed explanation-3: -Complex life cycles, in which discrete life stages of the same organism differ in form or function and often occupy different ecological niches, are common in nature. Because stages share the same genome, selective effects on one stage may have cascading consequences through the entire life cycle.
Detailed explanation-4: -Many parasitic infections, including those of humans, are caused by complex lifecycle parasites (CLPs): parasites that sequentially infect different hosts over the course of their lifecycle.