<span>In the question re-posed as one of the answers the best solution is option D
That is to say Unlike mammals fish ... utilize gills for gas exchangeIn the question re-posed as one of the answers the best solution is option D
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Populations belong to the same species if they can contribute genes to a common gene pool
Answer:
Direct service - coffee
Indirect service - photosynthesis
Ethical/ Aesthetic pleasure - sightseeing