$(a)$ "Each organism has its own identity". Explain.
$(b)$ What is speciation?
$(b)$ What is speciation?
(N/A) $(i)$ The $DNA$ of each organism is unique, which provides a distinct genetic blueprint.
$(ii)$ Within the same species, while the fundamental $DNA$ structure is similar, variations in the sequence of genes and the specific number of chromosomes contribute to individual identity.
$(b)$ Speciation is the evolutionary process by which new, distinct biological species arise from pre-existing populations through mechanisms such as natural selection, genetic drift, geographical isolation, or reproductive isolation.
$(ii)$ Within the same species, while the fundamental $DNA$ structure is similar, variations in the sequence of genes and the specific number of chromosomes contribute to individual identity.
$(b)$ Speciation is the evolutionary process by which new, distinct biological species arise from pre-existing populations through mechanisms such as natural selection, genetic drift, geographical isolation, or reproductive isolation.
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