NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When scientists classify organisms, they
A
arrange them in orderly groups
B
give them many common names
C
decide whether they are useful
D
ignore evolutionary relationships
Explanation: 

Detailed explanation-1: -“Taxonomic hierarchy is the process of arranging various organisms into successive levels of the biological classification either in a decreasing or an increasing order from kingdom to species and vice versa.” Each of this level of the hierarchy is called the taxonomic category or rank.

Detailed explanation-2: -Scientists classify organisms according to their evolutionary histories and how related they are to one another-by looking at their physical features, the fossil record, and DNA sequences. All life can be classified into three domains: Bacteria, Archaea, and Eukarya.

Detailed explanation-3: -Taxonomy is the science of naming, describing and classifying organisms and includes all plants, animals and microorganisms of the world.

Detailed explanation-4: -Scientists use taxonomy for organism classification to improve the understanding of the evolutionary relationship between different organisms. By grouping organisms that are similar on an evolutionary level, we can have basic knowledge about a group of organisms that can help when studying the organism later.

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