Question

Which among the following are the main factors responsible for determining how the organism will reproduce?

• A. Organism's physical development, body symmetery, taxonomic hierarchy
• B. Body size, cell type, mode of nutrition
• C. Environment, body size, cell number
• D. Organisms habitat, internal physiology, genetic makeup

Answer 1

The correct option is D Organisms habitat, internal physiology, genetic makeup

Habitat, internal physiology & genetic makeup are the main factors deciding an organism's sexual behaviour.

Environment, external physiology, phylogeny, body size, cell type, mode of nutrition, taxonomic hierarchy and other factors do contribute but have comparatively lesser role in determining how an organism will reproduce.