How does the nervous system help an organism meet a challenge of life? It digests food in order to allow the organism to obtain energy.
It carries and transports oxygen to all the cells of the body.
It responds to stimuli to help protect an organism and maintain structure.
It provides structure to protect internal organs, which helps protect the
organism.

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.

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.

Approximately what wavelength of light is best absorbed by chlorophyll a