Scientific investigations that involve some kind of testing will make use of observations. generally speaking making observations is the first step of the scientific method.
Answer:
Chemical and mechanical digestion are the two methods your body uses to break down foods. Mechanical digestion involves physical movement to make foods smaller. Chemical digestion uses enzymes to break down food.
Explanation:
Answer:
A
Explanation:
In its best form, a free market economy will determine a price by supply and demand.
Local governments can't determine anything unless it is a local commodity or product which will not be used anywhere else. Even then, the government is interfering with supply and demand.
National government -- same answer as local government. Any government interference does not result in a free market economy.
There are not enough wealthy citizens around to influence many markets.
Your best answer is A
Biodiversity is the different life forms and animals that exist on earth and the biosphere is where all of those life forms and animals live. <span />