Structural Organisation in Animals

Q. Select the correct sequence of organisation.

1. Cells - Tissues - Organs - Organ systems - Organism
2. Tissues - Cells - Organs - Organ systems - Organism
3. Organs - Cells - Tissues - Organ systems - Organism
4. Cells - Organs - Tissues - Organ systems - Organism

Q.

Spermathecae in earthworm is

1. None of these

2. Both 1 and 2 above

3. For producing sperm

4. For storage of sperm obtained from the male worm during copulation and used in the future

Q.

Setae help in the locomotion in earthworm but are not uniformly present in all the segments. Select among the following that represents setae.

1. 20th-22nd segment

2. Last segment

3. 1st segment

4. Clitellar segment

Q.

In earthworm, the characteristic internal medial fold of the dorsal wall of the intestine (called typhlosole) is present in

1. 5 to 9 segments

2. 26 to 35 segments

3. 15 to last segment

4. 9 to 14 segments

5. 35 to last segment

Q.

Water vascular system in Asterias serves for:

1. Locomotion

2. Respiration

3. All of these

4. Food capture

Q. Female genital aperture in earthworm is found in the

1. 10th segment
2. 12th segment
3. 14th segment
4. 18th segment

Q. Chloragogen cells are found in

1. blood of earthworm
2. blood of cockroach
3. coelomic fluid of earthworm
4. none of the above

Q.

Lateral hearts and lateral oesophageal hearts in earthworm respectively are present in

1. 12, 13 th segments and 7, 9 th segments

2. 13, 14 th segments and 8, 9 th segments

3. 8, 9 th segments and 13 , 14 th segments

4. 7, 9 th segments and 12 th, 13 th segments

Q. How are frogs beneficial to mankind?

1. Frogs feed on insects and protects the crops.
2. Frogs help in maintaining the ecological balance.
3. Frogs don't drink water
4. Both option a and b are correct

Q. What is difference between the segmented and metameric segmented ??

Q.

Mention briefly about the circulatory system of earthworm

Q. Average number of ova produced by a mature female frog is

1. 2500-3500
2. 2500-3000
3. 2000-3000
4. 1500-2000

Q. Tadpole of a frog is

1. ammonotelic
2. ureotelic
3. uricotelic
4. all of the above

Q. In Rana tigrina, cloaca is a common chamber for the opening of urinary tract, reproductive tract and ____.

1. portal system
2. alimentary canal
3. notochord
4. hepatic portal vessels

Q. Choose the correct set of answers from the following:
I. Frogs are bioindicators
II. Frogs are biological control agents
III. Frogs play an important role in the food web

1. I and II
2. I and III
3. II and III
4. I, II and III

Q.

Which of the following is the smallest taxonomic group of animals having a cranium, vertebral column, ventral heart, pulmonary respiration and two pairs of legs?

1. Vertebrata

2. Chordata

3. Gnathostomata

4. Tetrapoda

Q. In an earthworm, pharyngeal nephridia of 6th segment open into_______

1. Pharynx
2. oesophagus
3. buccal cavity
4. exterior

Q. Frogs have the ability to breathe in different ways. Choose the correct answer related to respiration in frogs from the options given below.

1. Pulmonary and cutaneous respiration
2. Cutaneous and buccopharyngeal respiration
3. Pulmonary, tracheal and buccopharyngeal respiration
4. Pulmonary, cutaneous and buccopharyngeal respiration

Q. Which of the following option is incorrect with reference to frogs?

1. Vascular system - closed type
2. Heart - three chambered
3. Excretion - uricotelic
4. Cranial nerves - 10 pairs

Q. A rasping organ with transverse teeth and present in the buccal cavity of a mollusc is called

1. Dental plate
2. Radula
3. Tongue
4. Rasper

Q. Which of the following is true in case of Pheretima?

1. They have eyes that sense light
2. The sense organs are located in the posterior part of the body
3. The central nervous system comprises of nerve ring only
4. The nerve ring is present in the 3rd and 4th segments

Q. The segment of earthworm in which the mouth is present is known as

1. prosoma
2. prostomium
3. peristomium
4. prosegment

Q.

Ectotherms escape very low temperatures by__________________.

Q. Which of the following is correctly matched in Pheretima?

1. Clitellum - secretes cocoon
2. Gizzard - absorbs digested food
3. Setae - defence against predators
4. Typhlosole - storage of extra nutrients

Q. In which of the following organisms all the functions are performed by a single cell

1. Protists
2. Bacteria
3. Virus
4. All of the above

Q. Choose the correct pair :

	Parts		Segment/Location
A.	Clitellum	I.	6-9
B.	Spermathecae	II.	26 onwards
C.	Female genital pore	III.	8-9
D.	Typhlosole	IV.	14
E.	Gizzard	V.	14-16

1. A-I, B-II, C-III, D-IV, E-V
2. A-II, B-IV, C-V, D-III, E-I
3. A-V, B-I, C-IV, D-II, E-III
4. A-III, B-II, C-I, D-V, E-IV

Q. The internal median fold of the dorsal wall of intestine called typhlosole is a characteristic feature of an earthworm. Where is it located?

1. Between the segments 5 and 9
2. From the segments 26 to 95
3. Between segments 9 and 15
4. From the 35th segment till the last segment

Q. The structure in earthworm which serves as a wedge to force open cracks in the soil is the

1. peristomium
2. setae
3. clitellum
4. prostomium

Q. Which of the following statements describes an earthworm’s niche?

1. Earthworms are decomposers who live in the soil
2. Earthworms eat decaying organic matter
3. Earthworms help in aerating soil
4. All of the above

Q.

The importance of structural organisation in animals is to facilitate _____.

1. Division of labour

2. Simplification

3. Multicellularity

4. Body complexion