Mitochondria and chloroplasts, organelles inside of eukaryotic cells, have their own membranes and genetic material. this is evidence of a. abiogenesis. b. horizontal gene transfer. c. coevolution. d. the endosymbiotic theory.

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

What is the ecological role of food chains and food webs

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.