What type of organ might need cells with a high concentration of mitochondria?

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

The activity of the modern sample is 1.10 bq . how long does that measurement take?

Which organelle will regrow during telophase?