Biology

The correct answer is: B.They are double-membrane organelles with their own unique DNA and ribosomes, and are involved in energy conversion.

Explanation:

Both mitochondria and chloroplasts share the following characteristics:

1.Double membranes: Both organelles have two membranes (an inner and outer membrane). This structure is thought to be a result of their evolutionary origins from endosymbiotic bacteria.

2.Own DNA: They contain their own unique DNA, which is separate from the cell's nuclear DNA. This DNA is used to encode some of the proteins required for their function.

3.Ribosomes: They have their own ribosomes that are more similar to those found in bacteria than to the ribosomes in the rest of the cell.

4.Involved in energy conversion:

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