Question

Which of the following animals show adaptive radiation based on locomotion?
A.Scorpion, elephant, human
B.Cheetah, kangaroo, mole
C.Praying mantis, seal, python
D.Cockroach, squirrel, toad

Answer 1

Hint: The animals have adapted to run fast, jump and dig for their survival. According to Darwin's theory of evolution, every living organism changes its anatomical structure for better survival and adaptation to a particular environment.

Complete step by step answer:
-Evolution is the adaptation of any living organism over a generation to the habitat. Adaptive radiation is when many organisms belonging to the same species adapt themselves differently in the same environment.
-Scorpions, elephants and humans have adapted themselves to the metabolic rate of the body. Under low amounts of food their body metabolic rate is adjusted to the conditions.
Cockroach, Squirrel and Toad have adapted their outer skin for protection from the climatic conditions of the environment.
-Praying mantis, seal and python have adapted themselves with various reasons like adaption to colour so that they are not visible to the predator or adaption to the cold conditions.

-The following animals have adapted for the survival in the environment-
Cheetah is the fastest running animal. If consider the ancestor of the species running is adaptive radiation that is adapted by cheetah for survival in the environment.
Kangaroo have adapted to the environment by adaptation in the limbs and built jumping. Jumping helps them to move quickly side by side and limbs of five digit can help them to grab things.
Moles are small burrowing mammals and are also called fossorial animals i.e. they adapted digging. Most of the time when the environmental conditions are harassed and difficult to survive, moles dig holes to live there.

According to the question, option B is the correct answer.

Note:
Each living organism undergoes adaptation for better survival but when we consider the adaptive radiation based on locomotion the three animals listed above fulfils the requirement of the question.