MEDIUM
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Which of the following statements is incorrect about the nervous system of earthworm?
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Important Questions on Structural Organisation in Animals
EASY
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
The spermatheca, which receive and store spermatozoa in pheretima are present in
MEDIUM
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.
MEDIUM
In the given diagram of the digestive system of earthworm, identify parts labelled as and select the correct option ?
EASY
Match the following features to the animals. Which is the correct combination?
Open circulatory system
Closed circulatory system
Earthworm
Malpighian tubules
Nephridia
Cockroach
MEDIUM
Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to
MEDIUM
Which of the following is an incorrect statement?
MEDIUM
One very special feature in the earthworm is that
MEDIUM
Which of the following statements is correct about excretion in earthworms?
(i) Earthworm is mainly ureotelic.
(ii) Septal nephridia, present on both sides of intersegmental septa of segment 15 to the last, open into the intestine.
(iii) Integumentary nephridia, attached to the lining of the body wall of segment 3 to the last, open on the body surface.
(iv) Different types of nephridia are basically similar in structure.
(v) Nephridia regulate the volume and composition of body fluids.
MEDIUM
Represent the union of two sets by Venn diagram for each of the following.
is a prime number between and
is an odd number between and
MEDIUM
The locomotion in earthworm takes places with the help of:
MEDIUM
______are the only paired longitudinal blood vessels of earthworm.
MEDIUM
Identify the wrong statements w.r.t. the digestive system of Pheretima?
MEDIUM
Identify the wrong statement w.r.t. reproductive system in earthworm.
EASY
and its close relatives derive nourishment from
MEDIUM
Identify the wrong statement w.r.t. earthworm.
MEDIUM
Which of the following is incorrect for earthworm?
EASY
The flow of blood in the dorsal blood vessel of the earthworm is:
EASY
A median mid-dorsal line along the longitudinal axis of the body of earthworm is represented by:
MEDIUM
Identify the correct labelling of the diagram given below.
