Olympiad Test Level 2: Plants and Animals - 2 - Class 4 MCQ

Migration means moving from one place to another due to environmental or climatic conditions but it does not necessarily give a more stable life. Hence, it cannot be considered as adaption by plants or animals.

Roses have thorns which act as self-defense and warn animals that get too close to them. Trees have various features that serve as protection. Lemon tree has thorns to protect itself against hungry animals. Cactus have spines instead of leaves which help them defend against herbivores. Spines also help in preventing water loss.

Travelling to a new place to find food.

Bears are able to survive winter months because they hibernate.

Pondweed is an aquatic plant.

Needle-like leaves and cones instead of flowers are structural adaptation which allow the pine tree to survive in hilly areas.

White coat of polar bear help them to camouflage.

Common cold is caused by viral infection. 

Plants of the grass family are also known as herbaceous plants.

Fungi obtain their nutrition from the dead plants or animals or rotten food.