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Which is not a homoiotherm...

Which is not a homoiotherm

A

Aptenodytes

B

Testudo

C

Delphinus

D

Neophron

Text Solution

AI Generated Solution

The correct Answer is:
To determine which organism is not a homeotherm, we need to understand the concept of homeothermy and analyze the given options. ### Step-by-Step Solution: 1. **Define Homeotherm**: Homeotherms are organisms that maintain a constant body temperature regardless of environmental conditions. Examples include mammals and birds (class Aves). 2. **Identify the Options**: The options given are: - Aptenoditis (penguins) - Testudo (Mediterranean tortoise) - Delphinus (dolphins) - Neophron (Egyptian vulture) 3. **Analyze Each Option**: - **Aptenoditis**: This refers to penguins, which are birds. Birds are homeotherms. Therefore, Aptenoditis is a homeotherm. - **Testudo**: This refers to the Mediterranean tortoise, which belongs to the class Reptilia. Reptiles are generally not homeotherms; they are ectothermic (cold-blooded). Hence, Testudo is not a homeotherm. - **Delphinus**: This refers to dolphins, which are mammals. Mammals are homeotherms. Therefore, Delphinus is a homeotherm. - **Neophron**: This refers to the Egyptian vulture, which is a bird. Birds are homeotherms. Therefore, Neophron is also a homeotherm. 4. **Conclusion**: After analyzing all options, the only organism that is not a homeotherm is **Testudo** (Mediterranean tortoise). ### Final Answer: **Testudo** is not a homeotherm. ---
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