- A. Psychology
- B. Biology
- C. Zoology
- D. Botany
b. Biology
- A. (i), (ii), and (iv) only
- B. (i), (ii) only
- C. (ii) and (iv)only
- D. (i), (iv), (ii) and (iii)
(d) (I), (iv), (il) and (iii)
- A. Skin
- B. Gills
- C. Lungs
- D. Trachea
c. Lungs
- A. Food and water only
- B. Water only
- C. Air, food and water
- D. Food only
(c) Air, food and water
- A. Earthworm
- B. fox
- C. Fish
- D. frog
c. Fish
- A. Tiger, Deer, Grass, Soil
- B. Rocks, Soil, Plants, Air
- C. Sand, Turtle, Crab, Rocks
- D. Aquatic plant, Fish, Frog, Insects
(d) Aquatic plant, Fish, Frog, Insects
- A. A desert with camels
- B. A pond with fish and snails
- C. Cultivated land with grazing cattle
- D. A jungle with wild animals
c. Cultivated land with grazing cattle
- A. heavy and strong Bones
- B. Soft and thick Bones
- C. Hollow and light Bones
- D. Flat and thick Bones
(c) Hollow and light Bones
- A. Pseudopodia
- B. flagella
- C. Foot
- D. cilia
d. Cilia
- A. Aquatic habitat
- B. Desert habitat
- C. Grass land habitat
- D. Mountain habitat
(b) Desert habitat
Habitat
Unicellular, multicellular
control the direction of the movement
Pseudopodium.
True
False – The geographical features and environmental conditions on earth do not remain the same from one place to another.
True
True
False – Paramecium is a unicellular organism.
habitat
unicellular
gills
walk and run
fat
The prey-catching process depends on their types.
The aquatic birds with the help of their beaks get their prey sliding upside down into the water.
The birds of paddy fields get small insects with the help of sharp claws of their limbs.
We can see camels in the state of Rajasthan:
The dwelling places of camels
Jodhpur
Pushkar
Pikanur
Jaisalmer.
Amoeba with the help of a finger-like projection called pseudopodia moves from place to place.
Snake’s body is divided into-
Head
body
tail
Organs on the head-Two eyes, Two nostrils mouth.
The tail helps the bird to change its direction while flying in air.
Polar bear:
They have short limbs.
They have limited body surface to reduce the body temperature
They have thick skin.
A polar bear has thick skin for protection against the cold climate.
They have thick fat deposition under the skin.
They eat food rich in fat.
Penguin:
They have a boat-shaped body
Their feathers absorb sunlight
They have thick skin.
They have thick fat deposition under the skin.
They have short wings to fly above the water and paddle for swimming.
The streamlined body shape.
Their forelimbs are modified into wings.
They have hollow and light bones for easy flying.
The body of the birds is covered with feathers.
The long leg of the camel helps to keep its body away from the desert.
Camel will drink a large amount of water and store it in the body.
Camel produces only a small quantity of urine.
The stored fat in the hump can break down for nourishment
A camel has large and flat padded feet which help in walking easily on soft sand.
The long eyelashes and hairs protect its eyes and ears from flowing dust.
It can keep its nostrils closed to avoid dust.
- A. Fish
- B. frog
- C. Euglena
- D. Lizard
(c) Euglena
- A. Cold region
- B. Hot region
- C. Cold and Hot region
- D. Forest region
(a) Cold region
- A. Flagellum
- B. Cilia
- C. Pseudopods
- D. Legs
(a) flagellum
False – In unicellular organisms, the size of the cell increases as it grows
True
True
False – The forelimbs of birds are modified as wings.
True
Unicellular: Amoeba, Paramecium, Euglena
Multicellular: Fish, Frog, Lizard, Birds, Man
The head, trunk, and tail of a fish merge to form a streamlined shape.
It helps the fish to move through the water easily.
Gill is a special respiratory organ. It is adapted to breathe in water.
Most of the fishes have slippery scales. It protects the body.
It has fins for swimming.
It has a strong tail. It acts as a rudder to change direction and keeps its body balance in the water.