One of the most important observations made by darwin on his trip around the world was: question 1 options: species have remained constant over time in some places but not in others species remain constant from place to place dna from all species is very similar species have remained constant over time species change from place to place and throughout time save

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Types of scientific inquiry that biologist engage in that cannot be completely controlled

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.