CAM plants are able to get carbon dioxide at night without sunlight. The stomata stay shut during the day because the extreme conditions would cause the plant to loose water and nutrients. CAM stands for crassulacean acid metabolism.
Hydrophilc substances are attracted to, or are able to be dissolved by water. Salt and sugar are examples of hydrophilic substances.
Cellular respiration is the process that cells convert food into ATP which is a useful energy.
Enzyme are proteins that act as catalysts that help speed up reactions.
Animals with radial symmetry are symmetric around an axis.
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