Which of the following statements is not true?

Options

A. The body color of frog offers it protective coloration.
B. The summer sleep of frog is called aestivation.
C. Tail is present in the lifecycle of frog.
D. Frog's mouth is bounded by a pair of lips.

Answer

To determine which of the following statements about frogs is not true, we will analyze each statement one by one:

1. **Statement 1**: The body color of frog offers it protective coloration.
- Frogs typically have body colors that are green, brown, or gray, which help them blend into their natural habitats. This adaptation provides them with protective coloration, known as crypsis or cryptic coloration.
- **Conclusion**: This statement is true.

2. **Statement 2**: The summer sleep of frog is called astivation.
- In frogs and other cold-blooded animals, there are two types of sleep: hibernation (winter sleep) and astivation (summer sleep). Astivation is a short-duration sleep where animals seek moist and shady places to rest. During this period, their heart rate and breathing rate slow down.
- **Conclusion**: This statement is true.

3. **Statement 3**: Tail is present in the life cycle of frog.
- In the life cycle of frogs, tails are present during the tadpole stage (juvenile stage). However, in adult frogs, the tail is absent as it is degenerated or absorbed by the body through a process called apoptosis.
- **Conclusion**: This statement is true, as the tail is present during the juvenile stage.

4. **Statement 4**: Frog's mouth is bounded by a pair of lips.
- In humans and other vertebrates, the mouth is surrounded by fleshy folds known as lips. However, frogs do not have proper lips; instead, their mouths are more of a continuous opening without distinct lips.
- **Conclusion**: This statement is false.

After analyzing all four statements, we find that the statement "Frog's mouth is bounded by a pair of lips" is not true.

**Final Answer**: The statement that is not true is: "Frog's mouth is bounded by a pair of lips."

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