Where are the male and female pores when the two clitella are aligned?

1. Does an earthworm have both male and female parts?
2. Which segments are the clitellum located?
3. In which section is the clitellum structure found in earthworms?
4. What structure secretes a protective cocoon from which the fertilized eggs will hatch?
5. Is earthworm monoecious or dioecious?
6. What is the function of the clitellum in earthworms?
7. What clitellum means?
8. What is clitellum and its significance?
9. Where does the ovule meet the sperm that fertilizes it?
10. Can a male worm get pregnant?
11. Where does fertilization occur?
12. How many segments are covered by the clitellum of an earthworm?
13. Where does Fertilisation take place in earthworms?
14. Where are setae located on the earthworm?

Does an earthworm have both male and female parts?

Earthworms are hermaphrodites, meaning an individual worm has both male and female reproductive organs. ... They wait for another earthworm to point in the opposite direction and then breed. The two worms join together, and a mucus is secreted so that each worm is enclosed in a tube of slime.

Which segments are the clitellum located?

The clitellum forms a band that can be flared, non-flared, saddle-shaped, or annular. It is generally found between segments 26 and 33. The clitellum is only found on adult worms.

In which section is the clitellum structure found in earthworms?

The clitellum is a thickened glandular and non-segmented section of the body wall near the head in earthworms and leeches, that secretes a viscid sac in which eggs are stored. It is located near the anterior end of the body, between the fourteenth and seventeenth segments.

What structure secretes a protective cocoon from which the fertilized eggs will hatch?

Once fertilization occurs, eggs are deposited into a cocoon secreted by the clitellum (Figure 23.10).

Is earthworm monoecious or dioecious?

Earthworms are monoecious, meaning that both female and male organs are present within the same worm.

What is the function of the clitellum in earthworms?

… 32 and 37 is the clitellum, a slightly bulged, discoloured organ that produces a cocoon for enclosing the earthworm's eggs. The body is tapered at both ends, with the tail end the blunter of the two. Earthworms cannot see or hear, but they are sensitive to both light and vibrations.

What clitellum means?

Definition of clitellum

: a thickened glandular section of the body wall of some annelids that secretes a viscid sac in which the eggs are deposited.

What is clitellum and its significance?

Answer: The clitellum is a thick, saddle - like ring found in the epidermis (skin) of the worm, usually with a light - colored pigment. To form a cocoon for its eggs, the clitellum secretes a viscous fluid. This organ is used in sexual reproduction of some annelids.

Where does the ovule meet the sperm that fertilizes it?

The setting

Egg and sperm travel in opposite directions to meet in (most often) the fallopian tubes. During ovulation, ovaries release an egg into one of the fallopian tubes, and the egg proceeds down the tube toward the uterus, which is being prepared for possible implantation.

Can a male worm get pregnant?

Researchers say the flatworm known as Macrostomum hystrix has one of the craziest reproduction systems ever conceived: In a pinch, it can plunge a natural hypodermic needle filled with sperm into its own head for self-insemination.

Where does fertilization occur?

A pregnancy starts with fertilization, when a woman's egg joins with a man's sperm. Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.

How many segments are covered by the clitellum of an earthworm?

Except for the mouth and the anal segments, each segment carries setae and nephridia. So, the correct answer is option (B) 14, 15, 16 segments.

Where does Fertilisation take place in earthworms?

Earthworms are monoecious or hermaphrodite which reproduce sexually. They are protandrous, there is no self fertilization. Fertilization is external and occurs in cocoon.

Where are setae located on the earthworm?

Bristles, called setae, are located on each segment of the earthworm's body. They prevent the earthworm from slipping backwards. FEEDING The earthworm is specially adapted for feeding underground.