Question

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check the statements that provide evidence for the endosymbiotic theory. choose three correct answers. prokaryotic cells, mitochondria, and chloroplasts are all the same size. mitochondria and chloroplasts contain their own ribosomes. mitochondria and chloroplasts grow independently from the cell. the dna in the nucleus and mitochondria are the same.

Explanation:

1. Statement 1: "Prokaryotic cells, mitochondria, and chloroplasts are all the same size."

Prokaryotes (like bacteria) are similar in size to mitochondria and chloroplasts, supporting the idea that these organelles were once free - living prokaryotes (endosymbiosis).

1. Statement 2: "Mitochondria and chloroplasts contain their own ribosomes."

Prokaryotic cells have their own ribosomes, and the fact that mitochondria and chloroplasts also have their own ribosomes (similar to prokaryotic ribosomes) is evidence for endosymbiosis (they were once independent prokaryotic - like entities).

1. Statement 3: "Mitochondria and chloroplasts grow independently from the cell."

If mitochondria and chloroplasts can grow and reproduce on their own (independent of the host cell's general growth), it suggests they have their own self - sustaining mechanisms, consistent with the endosymbiotic theory (they were once independent organisms).

1. Statement 4: "The DNA in the nucleus and mitochondria are the same."

Mitochondrial DNA is circular and more similar to prokaryotic DNA, while nuclear DNA is linear. So this statement is incorrect and not evidence for endosymbiosis.

Answer:

• Mitochondria and chloroplasts contain their own ribosomes.
• Mitochondria and chloroplasts grow independently from the cell.
• Prokaryotic cells, mitochondria, and chloroplasts are all the same size.