Question

Relatively more abundant animals of desert ecosystem are
A] Arboreal
B] Fossorial
C] Diurnal
D] Aquatic

Answer 1

Hint: In our world we can witness many diverse ecosystems with very different habitats in which we can find a living organism adapted to this diverse habitat. Each develops its special ability to survive in a diverse ecosystem.

Complete answer:
In this question, we should know that on our earth we have living organisms adapted to live on the environment of the earth. But the environment of earth isn’t the same in every place. The different place has a different environment with different climates and to live in this different and diverse environment animals have to evolve and adapt according to their ecosystem. For ex- polar bears living in the cold region have thick skin to protect themselves from cold and white fur to camouflage in snow, fishes have gills to breathe underwater or monkeys have long tails and limbs to live on trees. We all know that animals have evolved all these features over time because of evolution. The theory of evolution was proposed by Charles Darwin and Alfred Russel in the 19th century. The idea behind the theory of evolution is that all species are related and gradually changes over time. Evolution relies on there being genetic variation in a population that affects the physical characteristics of an organism. This change helps them to live in suitable habitats. There are four principle works in evolution- variation, inheritance, selection, and time. Terms that were explained during the theory of evolution are survival of the fittest, natural selection, divergent and convergent evolution. Similarly fossorial animals (animals adapted to digging) evolve or adapt to live in the desert. Because these animals live in burrows in the day time to protect them from the high temperature of desert and to protect themselves from predators.

Hence, the correct answer is option (B)

Note: As we know that the vast majority of the fossorial animals are rodents having fussy structure body, lesser created visual perception, short and bold appendages, little or missing outside ears, and wide and heavy forelimbs. All these modifications were described by H.W. Shimer in 1903.