Cant get these 2 5. the theory illustrated by the accompanying figure is used to explain the origin of illustrated figure down below a. cell membranes. b. eukaryotic cells. c. nuclear membranes. d. prokaryotic cells. 7. which of the following best supports the statement that mitochondria are descendants of endosymbiotic bacteria-like cells? (2 points) a. mitochondria fossils are older than the oldest fossilized eukaryote. b. mitochondria can survive indefinitely when removed from a eukaryotic cell. c. mitochondria have their own set of dna molecules. d. mitochondria can produce atp molecules.

Q 5. b. eukaryotic cells.

Q 7. c.  Mitochondria have their own set of DNA molecules.

Explanation:

Eukaryotic cells are assumed to be originated from the prokaryotic cell. It was assumed that a bigger prokaryotic cell engulfed a smaller prokaryotic cell but it was not digested. Both lived in symbiotic associations with each other and evolved to form eukaryotic cells.

The best example is seen in mitochondria and chloroplast in eukaryotic cells. Both are assumed to be of prokaryotic origin because both shows the similarity to prokaryotic cell such as having their own DNA, 70s ribosome and double membranous structure.

Therefore the correct answer for question 5 is b.  eukaryotic cell and for question 7 is c.  Mitochondria have their own set of DNA molecules.

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explanation:

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).