Endosymbiosis proposes that
A) eukaryotic cells arose when a much larger prokaryotic cell engulfed smaller bacterial cells that eventually developed into organelles.
B) two separate organisms can live in a symbiotic commensal relationship as long as one is a prokaryotic cell.
C) two separate organisms can live in a symbiotic parasitic relationship as long as one is a prokaryotic cell.
D) organelles formed in eukaryotic cells by invagination of cell membranes and insertion of DNA into the membrane-enclosed areas.
Ans: A) eukaryotic cells arose when a much larger prokaryotic cell engulfed smaller bacterial cells that eventually developed into organelles.
You might also like to view...
If the number of chromosomes in an animal's gametes is 20, then a somatic cell from that animal would contain ____
chromosomes.
a. 5 b. 10 c. 20 d. 40 e. 80
Which of the following piece of fossil evidence was not observed during Darwin's journey aboard the Beagle?
A. fossilized marine shells in the cliffs of the Andes Mountains B. fossilized remains of a giant ground sloth C. 13 different species of fossilized finches on the Galápagos Islands D. fossilized remains of the Glyptodont
Which two plant hormones are mainly responsible for leaf abscission?
a) Auxin and ethylene b) Gibberellic acid and auxin c) Ethylene and brassinosteroids d) Brassinosteroids and strigolactones e) Strigolactones and jasmonates
Which species is best associated with an occipital bun?
A. Humans B. Neandertals C. Homo erectus D. Homo habilis E. Australopithecines