Pick the odd one out.

Penguins have______ instead of arms.

Flippers of penguins are tapered and flattened so that they can flap through water .

Fishes have gills instead of ______ to breathe.

• Fishes live in water.
• Take oxygen from water.
• Have gills to take oxygen from water.

Lungs in animals carry______ to the blood and remove _____ from the blood.

• Lungs helps to release out carbon dioxide from the body.
• Lungs help in intake of oxygen.

Which organ filters blood in animals?

• Kidneys helps in excretion.
• These help in separation of waste material from blood.

Which part collects sunlight?

• Sunlight is required for photosynthesis to create food and energy in plants.
• Photosynthesis occurs in chloroplast present in leaves.
• Chloroplast has a green coloured pigment which is responsible for trapping sunlight.
• The green coloured pigment is known as chlorophyll.

Pick the odd one out.

Only lungs have an unique function and that is respiration.

Which of the following structures can help escape predation?

• The horns of animals work as weapons to kill their prey .

Waste is passed through which part of the body?

• Anus is the last part of our body from where the food (excluding nutritious matter) pass out from the body.

Which structure removes  toxins from the body of animals?

Kidneys have structural units called nephrons which filter blood.

Which of the following is an external organ.

• Except stomach all the given organs are external organs as present outside the body.

Which is an internal organ?

• All are the internal organs.

Which part is used in frogs to catch prey?

• Frogs eat small organisms inside and outside water.

Which of the following birds have a wide beak with a pouch to collect fish.

• Pelicans belong to pelecanidae family.

Which is an external organ?

• All the given organs are internal as no one is present outside the body.

Frogs have moist skin because

• The mucus layer prevents skin from drying.