A would be your answer! Have a great day love!
Answer:
Ecological and ethological approaches to the study of behaviour. The natural history approach of Darwin and his predecessors gradually evolved into the twin sciences of animal ecology, the study of the interactions between an animal and its environment, and ethology, the biological study of animal behaviour.
<span>B. the complementarity of DNA and RNA
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Answer:
Passive transport
Explanation:
Water is transported through channel proteins called aquaporins.
