More points for my friends or not friends doesn’t really matter

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

What is the relationship between absorbance of light and the rate of photosynthesis?

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different