Question

Difference between different living things with respect to their appearance and mode of life is called
A. Classification
B. Biodiversity
C. Evolution
D. All of the above

Answer 1

Hint: Different living things are present around us, ranging from the mountain and ocean to plants and animals. These things can be living and non-living. These living and non-living things interact with each other and form an ecosystem and the energy flow through different levels in the ecosystem.

Complete answer: Ecological complexity deals with a complex ecosystem which includes biodiversity among different organisms, their classification and evolution with the course of time. There is also a need to standardize the naming of a living organism, such that a living organism is known by the same name all over the world. This process is called nomenclature. Universally accepted principles are used by biologists all over the world to assign scientific names to organisms.
a) Classification: The establishment of a hierarchical system of categories on the basis of natural relationship among organisms, this is commonly called taxonomy. The organisms are grouped into Kingdom, class, order, family, genus on the basis of a biological classification system.
b) Biodiversity: It involves the diversity of living forms. Different life forms have different physical appearances, for example, some are tall, some are short and their mode of life is also different, like some are heterotrophs, while some are autotrophs.
c) Evolution: Change in characteristics of species over several generations called evolution. Evolution can occur due to several reasons like mutations, genetic drift etc. there are several evolution theories proposed by different scientists over the course of time.
Hence, the correct answer is option B.

Note: If we look around us, we see a large variety of organisms, such as insects, birds, animals, plants. There are also several organisms that we cannot see with our naked eyes. Each different kind of plant, animal, organism that we see represents a different species. The number of species that are known and described range from millions.