1. You have an isotope with a half-life of 200 years. How much of the original material is
left after 600 years? (Answer with a fraction or percent)

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant.it produces food.it absorbs nutrients.it supports the plan

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

4. if a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water? a. water will move out of the cell, causing it to shrivel. b. water will move in and out of the cell at the same rate. c. water will move out of the cell, causing it to swell. d. water will move into the cell, causing it to swell.