Question

Which of the following process occurs only in animals.

• A. Hormonal control
• B. Respiration
• C. Nervous control
• D. Nutrition

Answer 1

The correct option is C

Nervous control

The correct option is C:

Explanation of the correct option:

1. Most multicellular animals have a nervous system that varies in complexity.
2. Microscopic bloblike organisms do not have a nervous system at all.
3. ctenophores (comb jellies) and cnidarians have a diffuse nerve net as their nervous system.
4. Except for echinoderms and a few types of worms, all other animals have a nervous system

Explanation of the incorrect option:

Option A:

Hormonal control occurs in all organisms.

Option B:

Respiration is the act of breathing that occurs in all organisms.

Option D:

Nutrition is the only way to support life by food that's done by all organisms.

Final answer: Nervous control occurs only in animals.