A mutation is a change in trait. For example people who are lactose intolerant are normal, but people that can can drink milk without a problem have mutated. Hopefully this makes sense and helped.
Answer:
it is c: Taking observations at precise intervals
Explanation: I just took the test.
Most of the cells in the human body are diploid.
Diploid is a cell or organism that has paired chromosomes, one from each parent. In humans majority of the cells are diploid and have 23 pairs of chromosomes. The exception are the human sex cells (egg and sperm cells). These contain a single set of chromosomes and are known as haploid.