Janice measured the mass and the volume of an object. She then determined the density of the object by dividing the object’s mass by its volume (D = ). Which value would most likely represent the density of the object

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions

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.