Multiple Choice
In which group below do flowering plants belong?
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1. Introduction to Biology
Introduction to Taxonomy
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In the life cycle of helminths, adulthood and mating typically occur in which type of host?
A
Reservoir host
B
Intermediate host
C
Paratenic host
D
Definitive host
Verified step by step guidance1
Understand the concept of a definitive host: In the life cycle of parasitic organisms like helminths, the definitive host is the organism in which the parasite reaches maturity and undergoes sexual reproduction.
Differentiate between host types: A reservoir host harbors the parasite but does not necessarily allow its development; an intermediate host is where the parasite undergoes developmental stages but does not reach maturity; a paratenic host is a transport host that does not support development.
Focus on the key biological process: Adulthood and mating are critical stages in the life cycle of helminths, and these processes require the parasite to be in its definitive host.
Relate the life cycle stages to host types: Since adulthood and mating are the final stages of the parasite's life cycle, they occur in the definitive host, which supports the completion of the reproductive cycle.
Conclude the reasoning: Based on the definitions and biological processes, the correct answer is the definitive host, as it is the host where the helminth reaches maturity and reproduces sexually.
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