D). Carcinogens are chemical factors in an organism's environment that can cause spontaneous mutation.
Plants manufacture glucose during photosynthesis. Which would be the process that plans use to make food using sunlight.
Chloroplast and mitochondria. Because both organelles are roughly the same size and shape as bacteria, have their own double layer membrane, and mitochondria have dna, that they were engulfed by early cells and are now organelles.
