Rosa is trying to figure out which units to use to time her 100-meter race. Which units should she use? A. Hours
B. Seconds
C. Kilograms
D. Minutes

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

9. the history of life on earth is recorded in

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.