Assertion: Eyes in a frog are simple, spherical structures.
Reason: Frogs possess compound eyes composed of multiple units.
Both the assertion and reason are true, and the reason is the correct explanation of the assertion.
Both the assertion and reason are true, but the reason is not the correct explanation of the assertion.
The assertion is true, but the reason is false.
The assertion is false, but the reason is true.
The assertion that eyes in a frog are simple, spherical structures is true. Frogs do possess simple eyes, not compound eyes composed of multiple units. Simple eyes, also known as ocelli, are basic eyes that consist of a single unit and are less complex compared to compound eyes found in some other organisms. The reason provided in the statement is incorrect as it describes compound eyes, which is not applicable to frogs. Therefore, while the assertion is true, the reason is false, making option 3 the correct answer.