Which of the following would produce a nonsense mutation?
a. the replacement of a single base, producing the same amino acid b. the deletion of a single base c. the insertion of a single base d. the replacement of a single base, producing a stop codon

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air

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.

Which statement best describes the role of religion and culture in ancient medicine?