Pick the odd one out.

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.

Tongue also helps to generate ____________.

• Saliva digests starch from the food in mouth.

Arctic fox has_______ as an adaptation.

• Arctic foxes live in burrows and in a blizzard they may tunnel into the snow to create shelter.

Stomach helps in the process of ______________.

• Stomach is also divided into three different parts which play role in digestion.
• Lining of stomach secretes hydrochloric acid which helps in digestion of food. 

Lungs help an animal to _____.

• Lungs carry oxygen to blood and carbon dioxide from the blood.

Eagles have hooked beak because:

• The beak of eagles is typically heavier than that of most other birds of prey.

Heart is an organ that pumps_____ to all the organs of the body.

• Blood is pumped by heart to whole of our body.