LIFE SCIENCE

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OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A process in which new species develop from preexisting species (biological evolution or macroevolution); a change in allele frequencies of a population of organisms from generation to generation (genetic evolution or microevolution).
A
Allele Frequency
B
Embryology
C
Evolution
D
Extinction
Explanation: 

Detailed explanation-1: -In the longer term, evolution produces new species through splitting ancestral populations of organisms into new groups that cannot or will not interbreed. These outcomes of evolution are distinguished based on time scale as macroevolution versus microevolution.

Detailed explanation-2: -Coevolution is commonly defined as reciprocal evolutionary changes brought about by interactions between species, implying that interacting species impose selection on each other.

Detailed explanation-3: -Natural selection is the process through which species adapt to their environments. It is the engine that drives evolution.

Detailed explanation-4: -Speciation is the process by which one or more species1 arises from a common ancestor, and “macroevolution” refers to patterns and processes at and above the species level – or, transitions in higher taxa, such as new families, phyla, or genera.

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