Which pair is correctly matched?

Options

A. Vertebrates : snakes
B. Invertebrates : frog
C. Mammal: monkey
D. All of these

Explanation

To determine which pair is correctly matched, we need to analyze each option provided:

1. **Option A: Vertebrates are snakes.**
- Snakes are indeed vertebrates because they possess a backbone. Therefore, this option is correctly matched.

2. **Option B: Invertebrates are frogs.**
- Frogs are not invertebrates; they are amphibians and possess a backbone, making them vertebrates. This option is incorrectly matched.

3. **Option C: Mammals and monkeys.**
- Monkeys are mammals, as they give live birth and possess mammary glands. This option is correctly matched.

4. **Option D: All of these are correct.**
- Since option B is incorrect, this option cannot be correct.

Based on the analysis:
- The correct pairs are:
- Option A: Vertebrates are snakes (correct).
- Option C: Mammals and monkeys (correct).

Thus, the pairs that are correctly matched are A and C.

**Final Answer:** The pairs correctly matched are A (Vertebrates are snakes) and C (Mammals and monkeys).

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