NCERT Class 12 Biology Competitive Exams Questions and Answers
82 Select the correct statement from the following options.
Answer: Fitness is the end result of the ability to adapt and get selected by nature.
83 Change of frequency of alleles in a population results in evolution. This statement is proposed in
Answer: Hardy-Weinberg principle
84 Increase in cases of skin cancer and high mutation rate are the result of
Answer: ozone depletion
89 Which of the following represents the sedimentary type of nutrient cycle?
Answer: Phosphorus cycle.