In earthworm testes are situated in the
10th and 11th segments
11th and 12th segments
14th and 15th segments
none of these
- The septal and pharyngeal nephridia open into the alimentary canal and are of enteronephric type. It…
- Earthworms do not have any respiratory organs because
- The direction of blood flow in the dorsal vessel of earthworm is
- Haemoglobin is dissolved in plasma is
- Metamerism is present in
- Nephrostomes are found in
- Earthworm has no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic…
- The coelomic fluid in earthworm escapes through
- The coelom in Pherethna is
- 5. The pre-typhlosolar region in Pheretima extends from
- Sperma thecae in earthworm are meant few
- Pheretima is
- The terminal nephridial ducts of the septal nephridia of Pheretima open into
- Earthworm is useful because it
- The chloragogen cells of earthworm are analogous to
- Which of the following statements is correct ?
- The nitrogenous waste in earthworm consist of about
- Anticoagulant secreted by leech is
- A chitinous lining in earthworm is found in
- Chromophil cells in earthworm are concerned with the secretion of
- In earthworm, the first segment in which mouth is situated is known as
- In earthworm, the septal nephridia put their excretory discharge into
- Structure typically represented in every segment of earthworm is
- A skeleton like function during locomotion of Pheretima is performed by
- In earthworm fertilisation occurs in
- Spermathecae in earthworm represent
- The fertilization in earthworms occurs in
- The female genital aperture in earthworm is present ventrally on segment
- The enteronephric nephridia in earthworm are
- Copulation occurs between two earthworms