A habitat is:
Ecosystem can be defined as:
Which category of animals makes up 90 per cent of the animal world?
Which group of animals have been on earth the longest?
Like water beetles, which other animal breathes oxygen from the air, renewing its supply of air on the surface?
Which of the following have hearing organs on their front legs?
Who am I?
I swim in swamps, I bloat my cheeks, I dive in dams and croak in creeks.
Which of the following is a correct match with the given headings?
Can fly, Cannot fly
A parrot can fly while a penguin can't so the correct answer is Parrot, Penguin.
Which of these animals camouflage with its surrounding?
Choose the correct option to answer the sentence below:
Animals return water to the environment by........................
A) Perspiration (sweating) is the loss of water and salts through the surface of the skin. This water evaporates. Urine is mostly water and is also composed of salts and is excreted by the animal into the environment. While breathing, minute molecules of water or water vapour are given out into the environment along with carbon dioxide.
B) While drinking water, the animal consumes it from the environment.
C) Perspiration and urination release water into the environment.
D) Breathing releases water in form of water vapour into the environment.
So, the correct answer is '(i), (iii) and (iv)'.