Structural Organisation in Animals Test

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Structural Organisation in Animals Test - 8

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Weekly Quiz Competition

Question 1
1 / -0

In Pheretima, ovaries are present in

A
14th, 15th and 16th segments

B
7th, 8th and 9th segments

C
13th segments

D
5th, 6th and 7th segments

Solution

In Pheretima a pair of whitish, small, lobulated ovaries are present on either side of ventral nerve cord in 13th segments.
Question 2
1 / -0

In earthworm, the stomach is present in

A
15 – 26 segments

B
8 – 10 segments

C
9 – 14 segments

D
5 – 7 segments

Solution

The stomach of earthworm is a long cylindrical structure and extends from 9-14 segments.
Question 3
1 / -0

Which statement is wrong with respect to earthworm?

A
A single male genital pore is present.

B
Setae help in the locomotion

C
Muscular layer in the body wall of earthworm is made up of circular muscles.

D
Typhlosole is the part of intestine.

Solution

The body wall of the earthworm is covered externally by a thin non-cellular cuticle below which is the epidermis, two muscle layers namely, circular and longitudinal and an innermost coelomic epithelium.
Question 4
1 / -0

The clitellum in earthworm occur in

A
10 – 12 segments

B
14 – 16 segments.

C
13 – 15 segments

D
12 – 14 segments

Solution

In a mature worm, segments 14-16 are covered by a prominent dark band of glandular tissue called clitellum.
Question 5
1 / -0

How many pairs of spiracles are found in cockroach?

A
10 pairs

B
6 pairs

C
8 pairs

D
7 pairs

Solution

The respiratory system consists of a network of trachea. This network open through 10 pairs of small holes called spiracles present on the lateral side of the body.
Question 6
1 / -0

In male cockroaches, genital pouch lies at the hind end of abdomen bounded by

A
Dorsally by 9th and 10th terga and ventrally by the 10th sternum.

B
Dorsally by 9th and 10th terga and ventrally by the 9th sternum.

C
Dorsally by 8th and 9th terga and ventrally by the 9th sternum.

D
Dorsally by 8th and 9th terga and ventrally by the 8th sternum.

Solution

In males, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by 9th and 10th terga and ventrally by the 9th sternum. It contains dorsal anus, ventral male genital pore and gonapophysis.
Question 7
1 / -0

The true statement about cockroach is

A
Each ovary has 10 ovarioles.

B
Cockroaches are ureotelic.

C
Caterpillar is the larval stage.

D
Anal styles are absent in female cockroach.

Solution

Male cockroaches bear a pair of short, thread-like anal styles which are absent in females.
Question 8
1 / -0

The number of eggs contained in an ootheca of cockroach is

A
8 – 10

B
10 –12

C
14 – 16

D
9 – 11

Solution

On an average, females produce 9-10 oothecae. Each ootheca contains 14-16 eggs.

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Structural Organisation in Animals Test - 8

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Structural Organisation in Animals Test - 8

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Question 1

14th, 15th and 16th segments

7th, 8th and 9th segments

13th segments

5th, 6th and 7th segments

Solution

Question 2

15 – 26 segments

8 – 10 segments

9 – 14 segments

5 – 7 segments

Solution

Question 3

A single male genital pore is present.

Setae help in the locomotion

Muscular layer in the body wall of earthworm is made up of circular muscles.

Typhlosole is the part of intestine.

Solution

Question 4

10 – 12 segments

14 – 16 segments.

13 – 15 segments

12 – 14 segments

Solution

Question 5

10 pairs

6 pairs

8 pairs

7 pairs

Solution

Question 6

Dorsally by 9th and 10th terga and ventrally by the 10th sternum.

Dorsally by 9th and 10th terga and ventrally by the 9th sternum.

Dorsally by 8th and 9th terga and ventrally by the 9th sternum.

Dorsally by 8th and 9th terga and ventrally by the 8th sternum.

Solution

Question 7

Each ovary has 10 ovarioles.

Cockroaches are ureotelic.

Caterpillar is the larval stage.

Anal styles are absent in female cockroach.

Solution

Question 8

8 – 10

10 –12

14 – 16

9 – 11

Solution

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