Which of the following are the characteristics of living beings?
(i) Respiration
(ii) Reproduction
(iii) Adaptation
(iv) Excretion
Choose the correct one

(a)

(i), (ii), and (iv) only

(b)

(i), (ii) only

(c)

(ii) and (iv) only

(d)

(i), (ii), (iii) and (iv)

All animals need

(a)

Food and water only

(b)

Water only

(c)

Air, food and water

(d)

Food only

Choose the set that represents only biotic components of a habitat.

(a)

Tiger, Deer, Grass, Soil

(b)

Rocks, Soil, Plants, Air

(c)

Sand, Turtle, Crab, Rocks

(d)

Aquatic plant, Fish, Frog, Insects

Birds fly in the air with the help of

(a)

heavy and strong Bones

(b)

Soft and thick Bones

(c)

Hollow and light Bones

(d)

Flat and thick Bones

Kangaroo rat lives in

(a)

Aquatic habitat

(b)

Desert habitat

(c)

Grass land habitat

(d)

Mountain habitat