NEET 2021
- Exam
- NEET
- Year
- 2021
- Subject
- Zoology
- Chapter
- Structural Organisation in Animals
NEET 2021 · Zoology · Structural Organisation in Animals
Following are the statements about prostomium of earthworm. (a) It...
Following are the statements about prostomium of earthworm.
(a) It serves as a covering for the mouth.
(b) It helps to open cracks in the soil into which it can crawl.
(c) It is one of the sensory structures.
(d) It is the first body segment.
(a) It serves as a covering for the mouth.
(b) It helps to open cracks in the soil into which it can crawl.
(c) It is one of the sensory structures.
(d) It is the first body segment.
Options
- A(a), (b) and (c) are correct
- B(a), (b) and (d) are correct
- C(a), (b), (c) and (d) are correct
- D(b) and (c) are correct
Correct answer
A. (a), (b) and (c) are correct
Step-by-step solution
In an earthworm, the anterior end of the body consists of the mouth and the prostomium. The prostomium is a lobe that acts as a covering for the mouth and serves as a wedge to force open cracks in the soil into which the earthworm may crawl. The prostomium is sensory in function. The first segment of the body is called the peristomium.