1. While in the Galápagos Islands, Darwin observed two tortoises: the domed tortoise found on Isabela
Island (shown at top) and the saddleback tortoise
found on Hood Island (shown at bottom). Using the
draw pad tool, outline in red the part of the shell
near the legs and neck of each tortoise to show
how they are different.
Which island is more likely to have a habitat with
low-lying food such as grass and moss? Provide
evidence from your drawing to support your
answer.

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.