Nephridia of Pheretima are:

50% studentsanswered this correctly

Important Questions on Invertebrate Phyla

EASY

Biology>Animal Diversity-I>Invertebrate Phyla>Physiology and Anatomy of Earthworm

Match the following features to the animals. Which is the correct combination?

$1 .$ Open circulatory system

$2 .$ Closed circulatory system

$3 .$ Earthworm

$4 .$ Malpighian tubules

$5 .$ Nephridia

$6 .$ Cockroach

MEDIUM

Biology>Animal Diversity-I>Invertebrate Phyla>Physiology and Anatomy of Earthworm

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.

EASY

Biology>Animal Diversity-I>Invertebrate Phyla>Physiology and Anatomy of Earthworm

The following are the various parts of reproductive system of Pheretima.
A. Testes
B. Accessory glands
C. Spermathecae
D. Ovaries
Arrange them in a correct sequence from anterior end to posterior end.

MEDIUM

Biology>Animal Diversity-I>Invertebrate Phyla>Physiology and Anatomy of Earthworm

The spermatheca, which receive and store spermatozoa in pheretima are present in

MEDIUM

Biology>Animal Diversity-I>Invertebrate Phyla>Physiology and Anatomy of Earthworm

Identify the wrong statement w.r.t. reproductive system in earthworm.

MEDIUM

Biology>Animal Diversity-I>Invertebrate Phyla>Physiology and Anatomy of Earthworm

Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to

MEDIUM

Biology>Animal Diversity-I>Invertebrate Phyla>Physiology and Anatomy of Earthworm

The figure showing the nephridial system of earthworm is given here. Identify the types of nephridia labeled as A, B, and C from the list