(i) According to Lamarck nature brings in variations
(ii) Absence of limbs in snakes is an example for Darwinism
(iii) Presence of oversized antlers in Irish deer could not be explained by Darwin
(iv) Micro evolution refers to change in allele frequencies in a population.

Options

A. In sympatric speciation, both new and ancestral species continue to inhabit the same geographical region.
B. Phenotypic plasticity in the ability of single genotype to produce more than one phenotype.
C. Mass extinction of animals happened due to the elevation of `CO_(2)` level.
D. Mass extinction is often refered to as K-T extinction.

Answer

C