27. Explain how the evolution of photosynthetic organisms, such as algae, decreased the carbon dioxide and increased the oxygen of earth's early atmosphere.

Explanation:

As organisms evolved to become photosynthetic, they used the process of photosynthesis, which extracted the carbon dioxide in Earth's atmosphere along with water on the surface of the Earth to create sugar they needed for survival. Due to this process, carbon dioxide is decreased in the atmosphere with oxygen being released as the waste product of the process, which had led to the increase of oxygen in Earth's early atmosphere.

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explanation:

yes you are doing it right great gob

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).