The answer is excretory system. The function of the excretory system are; to get rid of of wastes,eliminate useless byproducts excreted from cells, eradicate harmful chemical buildups and maintain a steady, balanced chemical concentration in the body.
Life liberty property and the pursuit of happiness
This is necessary because if it ISN'T instinct then the young would die far more often.
Answer:
Water molecules are polar and form strong hydrogen bonds.
Explanation:
Properties like high surface tension and boiling point are unique to water due to water's polar molecules. This allows water to form very strong hydrogen bonds and give it some different abilities.
The answer is rice, wheat, and corn.
Croplands, rangelands and pastures, and fisheries and aquaculture provide an important supply of world's food. Nearly 80% of the world's food comes from croplands. People can eat about 50,000 plant species, but only 14 of them supply the majority of world's food. Of those 14, only three grains, and those are rice, wheat, and corn, are consumed by about two-thirds of the world's human population.