Answer:
A group of cells make a tissue, a group of tissues make and organ, a group of organs make an organ system, and an organ system makes a organism.
Nutrients in coral reefs are recycling efficiently because the water is so shallow. Coral reefs are generally located along tropical coastlines, in open ocean deserts. They thrive in tropical, low nutrient waters because there is no phytoplankton in there. They are home to a large number of species,
Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation: