Question

All invertebrates are

• A. acoelomates
• B. coelomates
• C. cold blooded animals
• D. warm blooded animals

Answer 1

The correct option is C

cold blooded animals

The correct option is C:

Explanation of the correct option:

Option C:

1. Invertebrates are cold-blooded animals without a backbone.
2. Cold-blooded animals cannot maintain a constant body temperature.
3. They cannot sustain in extreme temperature conditions.

Explanation of the incorrect option:

Option A :

1. The coelom is a fluid-filled cavity present between the alimentary canal and the body wall.
2. Acoelomates are those animals in which the coelom is absent.
3. For example:- Platyhelminthes.
4. Not all invertebrates are acoelomates.

Option B :

1. The coelom is a fluid-filled cavity present between the alimentary canal and the body wall.
2. Animals possessing true coelom are called coelomates.
3. Not all invertebrates are coelomates.

Option D :

1. Warm-blooded animals can maintain a constant body temperature.
2. Invertebrates are not warm-blooded.

Final answer: All invertebrates are cold-blooded animals.