Question

question 7
how did an endosymbiotic process aid the development of eukaryotic cells?
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question 8
what was the importance of the miller - urey experiment?
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Explanation:

For Question 7, the endosymbiotic theory posits that ancient prokaryotes engulfed other prokaryotes without digesting them. These engulfed cells became organelles like mitochondria and chloroplasts. Mitochondria likely originated from aerobic bacteria, providing the cell with the ability to produce energy through aerobic respiration. Chloroplasts, from photosynthetic bacteria, enabled photosynthesis. This led to the more complex and efficient eukaryotic cell structure.
For Question 8, the Miller - Urey experiment simulated early Earth's conditions in a laboratory. It produced organic compounds, including amino acids, from inorganic substances. This showed that the building - blocks of life could have formed spontaneously on early Earth, providing evidence for the chemical origin of life.

Answer:

Question 7: The endosymbiotic process led to the formation of organelles like mitochondria and chloroplasts, enhancing energy - production and photosynthesis capabilities, contributing to the development of more complex and efficient eukaryotic cells.
Question 8: The Miller - Urey experiment demonstrated that organic compounds, including amino acids, could form from inorganic substances under conditions similar to early Earth, providing evidence for the chemical origin of life.