EASY
Earn 100

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

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Important Questions on Structural Organisation in Animals

MEDIUM
Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth:
MEDIUM
Cockroach has 'superposition vision'. This type of vision has the following characteristic features 'EXCEPT'
MEDIUM
The spermatheca, which receive and store spermatozoa in pheretima are present in
MEDIUM

Identify the correct statement with reference to the nervous system of the cockroach:
a) The nervous system of cockroach is called as autonomic nervous system.
b) There are 3 thoracic and 6 abdominal ganglion.
c) Sub-oesophageal ganglion controls the movements of mouth parts.
d) The 6th abdominal ganglion innervates the 6th abdominal segment.

The correct answer is

MEDIUM
Which of the following features is not present in Periplaneta americana?
EASY
In cockroach, if the sub-oesophageal ganglion is damaged, which part of the cockroach is affected?
MEDIUM

In the given diagram of the digestive system of earthworm, identify parts labelled as1, 2 ,3, 4 & 5 and select the correct option ?

Question Image

EASY

The following are the joints of each leg of a cockroach
I) Tibia
II) Coxa
III Tarsus
IV) Femur
V) Trochanter

Arrange these in order.

EASY
In the abdomen of Cockroach, the ventral nerve cord is absent in the following segments
EASY
Identify the correct sequence of flow of circulation of blood in Periplaneta americana
MEDIUM
The cells of fat body of cockroach which contain symbiotic bacteria are:
EASY
In male cockroaches, sperms are stored in which part of the reproductive system?
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
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.