Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool. Two of the most relevant mechanisms of evolutionary change are: Natural Selection and Genetic Drift.
Living organisms such as trees'animals, and humans grow by the year
Non living organisms do not grow at all.
I think it is from the Sun!
Can you identify what your wanting here like are you meaning an example of cytoplasm are things that you can touch as an example
<span>A method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.</span>
