The snottites described in "The First Cell: Life's Origin" just before Chapter 2 are colonies of bacteria, which are extremophiles that have some unique requirements for life processes. For example, they use sulfur from the hydrogen sulfide in the environment to capture energy. Although most life forms that are familiar to you, including humans, don't use sulfur for this purpose, we do use another element to do the same thing. Using the periodic table, explain how some elements could substitute for others in biochemical reactions. For example, science fiction writers sometimes speculate that there could be silicon-based life forms on other planets, and some extremophiles on Earth, such as the snottites, use sulfur in a similar manner to how humans use oxygen.

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The Answer of The snottites described in "The First Cell: Life's Origin" just before Chapter 2 are colonies of bacteria, which are extremophiles that have some unique requirements for life processes. For example, they use sulfur from the hydrogen sulfide in the environment to capture energy. Although most life forms that are familiar to you, including humans, don't use sulfur for this purpose, we do use another element to do the same thing. Using the periodic table, explain how some elements could substitute for others in biochemical reactions. For example, science fiction writers sometimes speculate that there could be silicon-based life forms on other planets, and some extremophiles on Earth, such as the snottites, use sulfur in a similar manner to how humans use oxygen.

The Snottites Described in "The First Cell: Life's Origin" Just