Class Mammalia

Q. Explain me the functions of the 4 chambers in ruminant's stomach?

Q.

Cows have how many stomachs?

1. 1

2. 2

3. 3

4. 4

Q.

What is cellulose and why can't we eat it

Q. Explain digestion in cows.

Q.

Which of the following organism do not give birth to young ones?

1. Human

2. Blue whale

3. Lizard

4. Rat

Q.

Give a brief description about this things

Absorption, amino acids, amboea, assimilation, bile, buccal, cavity, canine, cellulose, digestion, egestion, fatty acids, food vacuole, gall bladder, glycerol, incisors, ingestion, liver, milk teeth, molar, permanent teeth, oesophagus, pancreas, premolar, pseudopodia, rumen, ruminants, ruminations, salivary glands, villi, saliva.

Q.

Which of the following class(s) of animals have hair on their skin?

1. Reptilia

2. Aves

3. Mammalia

4. Amphibia

Q.

How many chambered heart do the toads have?

1. 1 chamber

2. 3 chambers

3. 4 chambers

4. 2 chambers

Q.

Which of the following pair have a four-chambered heart?

1. Reptiles - Aves

2. Reptiles - Pisces

3. Pisces - Amphibians

4. Aves - mammals

Q. Arrange the steps of digestion in ruminants in the correct sequence.

A. Chewing of cud
B. Swallowing grass
C. Formation of cud
D. Storing in rumen

Q. Match the Columns.
कॉलमों का मिलान कीजिए।

	Column (कॉलम) I (Characteristic features of Polar bear) (ध्रुवीय भालू के अभिलाक्षणिक गुण)		Column (कॉलम) II (Adaptations) (अनुकूलन)
(A)	A layer of fat under its skin इसकी त्वचा के नीचे वसा की परत होती है	(P)	Help it to walk on ice बर्फ पर चलने में इसकी सहायता करते हैं
(B)	Very strong sense of smell सूँघने की तीव्र शक्ति होती है	(Q)	Insulates its body from cold इसके शरीर को ठण्ड से बचाता है
(C)	Wide and large paws चौड़े तथा लंबे नखर	(R)	Helps it to locate and catch its prey अपने शिकार को ढूँढने तथा पकड़ने में इसकी सहायता करते हैं
(D)	Long curved and sharp claws लंबे मुड़े हुए तथा पैने पंजे	(S)	Helps it to swim तैरने में इसकी सहायता करते हैं

1. A(Q), B(R),
2. C(P, S), D(P)
3. A(P, S), C(P)
4. C(Q), D(R)

Q. Identify the classes consisting of warm-blooded organisms.

1. Pisces and Amphibia
2. Amphibia and Reptilia
3. Reptilia and Aves
4. Aves and Mammalia

Q.

Which of the following are the chambers of the stomach in grass eating animals?

1. Rumen

2. Reticulum

3. Omasum and abomasum

4. All of these

Q.

Bats belong to which of the following groups?

1. Pisces

2. Mammalia

3. Amphibia

4. Aves

Q. How many chambers present in stomach of ruminating mammals?

1. Five
2. Three
3. Four
4. Two

Q. Which of the following is not an adaptation of prey?

1. Long ears
2. Flat teeth
3. Strong legs
4. Sharp claws

Q.

Lion belongs to class

1. Aves

2. Reptilia

3. Amphibia

4. Mammalia

Q. Arrange the steps of digestion in ruminants in the correct sequence.

A. Chewing of cud
B. Swallowing grass
C. Formation of cud
D. Storing in rumen

Q. Bats belong to which of the following classes?

1. Mammalia
2. Amphibia
3. Aves
4. Pisces

Q. What is an adaptation? Mention the adaptations found in the following mammals.
(a) Whale (b) Polar bear (c) Kangaroo (d) Herbivorous mammals.

Q.

DIRECTIONS: Match Column – I with Column – II and select the correct answer using the codes given below the columns.

$\begin{array}{cc}Column-I& Column-II\\ A.Redeyedfrog& P.Thickskinandstrongsenseofsmell\\ B.Toucan& Q.Thickskinandsensitivehearing\\ C.Bigcats& R.Longlargebeak\\ D.Polarbear& S.Stickypad\end{array}$

1. A-Q; B-R; C-Q, D-P

2. A-S; B-R; C-Q; D-P

3. A-Q; B-R; C-P; D-S

4. A-S; B-R; C-P; D-Q

Q. Which of the following is not a characteristic feature of mammals?

1. Mammary glands
2. Warm-blooded
3. Four-chambered heart
4. Skin covered with scales

Q. In amphibians and reptiles the left atrium receives oxygenated blood from _____________.

1. Lungs
2. Gills
3. All of above
4. Skin

Q.

Hedgehog belongs to class Mammalia.

1. True

2. False

Q. Give some characteristic features of Mammalia.

Q. What is cudCud

Q.

Which of the following is an egg laying mammal?

1. Kangaroo

2. Whale

3. Bat

4. Platypus

Q. Kangaroos are mainly found in Australia and are __________ .

Q. Identify the organisms with three chambered heart.

1. Crocodile
2. Snake
3. Lizards
4. Turtle
5. Frog
6. Fish
7. Toad
8. Pigeon

Q. What is aves?how does it look like?