Which of these animals possess blubber under its skin?
(a) Red-eyed frog
(b) Elephant
(c) Bird
(d) Polar bear

Academic Biology NCERT Class 7

Correct Answer: (d) Polar bear

Explanation:

Polar bear possesses blubber or thick layers of skin as it behaves as insulation against the cold.

They possess a greasy coat that sheds water after swimming and helps in reducing heat loss.

Tutorialspoint

Updated on: 12-Jan-2023

16 Views

Which of the following statement is or are incorrect?(a) Red eyed frog is an omnivore and eats any type of insects as food.(b) The big and bulging bright red eyes of this frog are an adaptation for protection.(c) Red eyed frog has developed sticky pads on its feet which help it to climb easily on the tree.(d) All the above.
Which of them is or are the adaptive features of a polar bear?(a) Layer of fat under the skin(b) Layer of fat under the skin and long, curved and sharp claws(c) Layer of fat under the skin, long curved and sharp claws and slippery body(d) Layer of fat under the skin, long curved and sharp claws and thick white fur
Animals living in polar regions have a fat layer under their skin, that saves them from the extremely cold climate, but how the birds survive in these regions.
The two organisms which breathe only through their moist skin are:(a) fish and frog (b) frog and earthworm (c) leech and earthworm (d) fish and earthworm
The muscles covers the(a) Skin(b) Bones(c) Both (a) and (b)(d) None of these
Given below are some adaptive features of animals:(i) Layer of fat under the skin(ii) Long, curved and sharp claws(iii) Slippery body(iv) Thick white fur Which of them are the adaptive features of a polar bear?(a) (i) only(b) (i) and (ii) only(c) (i), (ii) and (iii) only(d) (i), (ii) and (iv) only
Which of the following animals swallow its prey?(a) Human beings(b) Snakes(c) Humming birds(d) Ant
Which of the following does not have a streamlined shape?(a) aeroplane(b) boat(c) bird(d) bus
Describe the adaptations of the 'Polar Bear' in the polar climatic conditions in detail.
A snail moves by its muscular(a) Wings(b) Foot(c) Fins(d) None of these
Total number of animals in five villages are as follows:Village A :80Village B: 120Village C: 90 Village D: 40Village E: 60Prepare a pictograph of these animals using one symbol \( \otimes \) to represent 10 animals and answer the following questions:(a) How many symbols represent animals of village E?(b) Which village has the maximum number of animals?(c) Which village has more animals : village A or village C?
Fill in the blanks in the following statements.(a) ______ and ______ fibres are obtained from animals.(b) Silk fibres come from ______ of silk ______ .(c) Wool yielding animals bear ______ on their body.(d) Hair trap a lot of ______ , which is a poor ______ of heat.
Why do plants and animals possess different types of tissues?
In the food chain comprising of a snake, grass, insect, and frog, the secondary consumer is :(a) insect (b) snake (c) frog (d) grass
In which group of animals, coelom is filled with blood?(A) Arthropoda (B) Annelida (C) Nematoda (D) Echinodermata

Kickstart Your Career

Get certified by completing the course

Get Started

Advertisements