Why are mitochondria and chloroplasts believed to have entered early eukaryotic cells by endosymbiosis of bacteria?
A. They contain DNA.
B. They are the same size as bacteria.
C. They are not derived from the endomembrane system as other organelles are.
D. All of the choices are correct.
Answer: D
You might also like to view...
Four of the five time periods listed below represent
milestones in the evolution of life on Earth. Select the exception. a. 12 to 15 billion years ago b. 3.2 billion years ago c. 2.1 billion years ago d. 570 million years ago e. 200 million years ago
Sequencing of HIV-1 revealed that it is most closely
related to which of the following? a. simian immunodeficiency virus b. feline leukemia c. bovine immunodeficiency virus d. hepatitis B e. all of these
Which division of meiosis is referred to as 'reduction division?'
A. meiosis I B. meiosis II
The cells that line the human respiratory passageways secrete
A) water. B) blood. C) hormones. D) mucus. E) enzymes.