The cliteilum singulum in earthworm is formed by
12,13 and 14 segments
13,14 and 15 segments
14,15 and 16 segments
16,17 and 1&segments
- Totally marine annelids belong to the
- The septal and pharyngeal nephridia open into the alimentary canal and are of enteronephric type. It…
- The nitrogenous waste in earthworm consist of about
- Structure typically represented in every segment of earthworm is
- The direction of blood flow in the dorsal vessel of earthworm is
- Spermathecae in earthworm represent
- The coelom in Pherethna is
- Metamerism is present in
- The female genital aperture in earthworm is present ventrally on segment
- Nephrostomes are found in
- The number of segments in leech is
- Nereis is commonly called
- Earthworms do not have any respiratory organs because
- Chromophil cells in earthworm are concerned with the secretion of
- A chitinous lining in earthworm is found in
- Chloragogen cells of Pheretima play a role very much like that of
- The chloragogen cells of earthworm are analogous to
- In earthworm, the septal nephridia put their excretory discharge into
- The coelomic fluid in earthworm escapes through
- Earthworm is useful because it
- 5. The pre-typhlosolar region in Pheretima extends from
- The excretory organs of earthworm are
- The fertilization in earthworms occurs in
- In the blood vascular system of earthworm there are four pairs of hearts present in the first 13 segments.…
- In earthworm, the circular muscles are highly developed in
- Pheretima is
- In earthworm, the nephridia without neprostomes are
- Chetae are totally absent in
- In earthworm fertilisation occurs in
- The enteronephric nephridia in earthworm are