Lactic acid formation occurs in B) The yeast cell.
Answer:
Abiotic factors play a large role in determining the types and traits of organisms that inhabit a given ecosystem. For example, air temperature, soil pH and type, the availability of fresh water, and the amount of sunlight all interact to influence what types of vegetation can thrive in a terrestrial habitat.
Explanation:
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Certain fossils, called index fossils, help geologists match rock layers. To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed for a brief time period. Index fossils are useful because they tell the relative ages of the rock layers in which they occur.
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The elodea is getting the carbon dioxide from its environment like when underwater animals breathe out carbon dioxide the plants will use that carbon dioxide. The plants can also get the carbon dioxide from the atmosphere which can "dissolve" in water.
