Diversity in Living Organisms Test

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Diversity in Living Organisms Test - 22

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Weekly Quiz Competition

Question 1
1 / -0

The plants which are differentiated into roots, stems and leaves but do not bear flowers and seeds are classified as

A
Thallophytes

B
Bryophytcs

C
Pteridophytes

D
Hydrophytes
Question 2
1 / -0

Which of the following does not have a backbone?

A

B

C

D
Question 3
1 / -0

'Frog leads two lives.' Yes or No? Why?

A
No, frog is an aquatic animal only

B
Yes, frog is an aquatic as well as a terrestrial animal

C
Yes, frog is both aquatic and aerial animal

D
No, frog is a terrestrial animal only

Solution

Frogs are amphibians. Amphibians are cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, salamanders, and caecilians. They are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage.
So, the correct answer is 'Yes, frog is an aquatic as well as a terrestrial animal'.
Question 4
1 / -0

Which of the following animals has long sticky tongue?

A
Cow

B
Eagles

C
Pangolins

D
Cheetahs

Solution

Pangolin or Manis are commonly called scaly anteaters. They have a protective covering of sales on their bodies which are basically made up of keratin. They are nocturnal animals and mainly feed on ants and termites. They have long protrusible tongues that help them to catch ants and termites The presence of sticky saliva on their tongues also enhance their ability to catch their prey.
So, the correct answer is 'Pangolins'.
Question 5
1 / -0

What are the parts of fishes labelled as a, b, c, d?

A
(a) Dorsal fin, (b) Pelvic fin, (c) Anal fin, (d) Caudalfin

B
(a) Dorsal fin, (b) Caudalfin, (c) Anal fin, (d) Pelvic fin

C
(a) Dorsal fin, (b) Caudalfin, (c) Pelvic fin, (d) Anal fin

D
(a) Pelvic fin, (b) Caudalfin, (c) Dorsal fin, (d) Anal fin

Solution

A dorsal fin is a fin located on the backs of various unrelated marine and freshwater vertebrates, including most fish.
The caudal fin is the tail fin, located at the end of the caudal peduncle and is used for propulsion.
The anal fin is located on the ventral surface behind the anus. This fin is used to stabilize the fish while swimming.
Pelvic fin: either of a pair of fins attached to the pelvic girdle of fishes that help to control the direction of movement during locomotion.
Question 6
1 / -0

Which of these are not present in birds?

A
Bones

B
Muscles

C
Kidneys

D
Teeth
Solution
Birds do not have teeth but have curved beaks and a hearty digestive tract that help them grind and process food.
So, the correct answer is 'Teeth.'
Question 7
1 / -0

Birds can fly due to light body weight. This is due to:

A
Hard bones

B
Soft bones

C
Cylindrical bones

D
Hollow bones
Solution
- Unlike the human bones that are filled with marrow, birds have a hollow bone which have air cavities inside them.
- In some bones, the hollow cavities contain extensions of the air sacs from the lungs.
- These air sacs help the bird to get the Oxygen it needs to fly quickly and easily.
- Hollow bones also contribute to the light body weight of birds.
So, the correct answer is 'Hollow bones'.
Question 8
1 / -0

In which of the following the body is completely covered with scales?

A
Snake

B
Sparrow

C
Snail

D
Frog
Question 9
1 / -0

Mammals have ............ chambered hearts.

A
One

B
Two

C
Three

D
Four
Question 10
1 / -0

Mammals are .............. blooded animals.

A
Cold

B
Warm

C
Some are cold while others are warm

D
None of the above