The food label on a package of crackers indicates a percent daily value for iron of 15%. this means that a. the entire package of crackers is make up of 15% iron b. one serving of crackers provides 15% of the iron that the average person needs each day c. one cracker provides 15% of the iron you need each meal d. the entire package of crackers provides 15% of the iron that the average person needs each day 53. the weight that is right for you is the weight that a. does not present any health risks b. you want to be c. you have at the present time d. your friends and family think you should be 54. what equation is used to calculate body mass index? a. (weight/height^2) x 703 b. (height/weight^2) x 703 c. (weight/height^2) / 703 d. (height/weight^2) / 703 55. your body mass index is a a. comparison of your body fat to your height b. ratio of your wieght to your age c. comparison of your body fat to your muscle and bone d. ratio of your height to your weight 56. how can you assess whether your weight falls within a healthy range? a. compare your weight to a person of the same height b. ask for the opinions of your friends c. calculate your body mass index d. determine yoru basal metabolic rate

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes

Is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance

How do high-energy electrons from glycolysis and the krebs cycle contribute to the formation of atp from adp in the electron transport chain? a. high-energy electrons interact with pyruvic acid to create a phosphate bond with adp, forming atp. b. high-energy electrons supply the needed energy to synthesize atp from the lower-energy adp in the electron transport chain. c. high-energy electrons supply a negative charge which causes the citric acid to oxidize, forming a phosphate group to bond with adp. d. high-energy electrons increase the temperature of adp so it easily reacts to form atp.