Which of the following statement is true?
Parental care is provided to:
a) protect from predators
b) protect from hypoxia and desiccation
c) protect from environmental calamities

Correct option is D

Correct Answer: (d) Both a & b
Explanation:
→ Parental care in fishes primarily protects eggs/fry from predators and ensures proper oxygenation by fanning, reducing hypoxia.
→ Protection from desiccation also occurs in some nest builders.
Information Booster:
→ Parental care increases survival but reduces parental reproductive output.
→ Seen in cichlids, gobies, and bettas.