Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error).
Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.
Genetic drift can have major effects when a population is sharply reduced in size by a natural disaster (bottleneck effect) or when a small group splits off from the main population to found a colony (founder effect).
Organic foods are natural food grown without the use of additives and synthetic pesticides. The crop must be harvested by hand is not the condition required.
<h3>What is organic food?</h3>
Organic food is the natural method of the growth and harvest of agricultural food and crops. They promote the principles of ecological balance and the conservation of biodiversity.
They are the crops grown without the addition of synthetic pesticides that are harmful to the crops and the organism that consumes them.
For labelling the food organic it must contain 95 % organic ingredients, produced without the use of pesticides and the animals used must have access to outdoors.
Therefore, option D. crops harvested by hand does not require the government to label food.
Learn more about organic food here:
brainly.com/question/4135258
The three main functions of the human digestive system are to break food down into chyme for the body's use, to secrete and absorb nutrients and bodily fluids into the gastrointestinal tract or the blood, and to store and eliminate waste. The digestive system has major parts and accessory parts.
