Compared to bacteria that have a typical size range between 1-10 ?m,
A. viruses have a much greater size range; between 22 nm and 1000 nm.
B. viruses range in size between 20-200 nm and are much larger than bacterial cells.
C. viruses are larger and are blocked by sterilizing filters.
D. all viruses are 22 nm.
Answer: A
You might also like to view...
A population in ecology is defined as ________.
A. one organism and its surrounding environment B. a group of organisms, all from the same species C. a group of organisms, some from the same species, some from other species D. a group of organisms, some from the same species, some from other species, and their surrounding environment
Which of the following is recognized as a microbe capable of nitrification?
A. Hyphomicrobium spp. B. Purple nonsulfur bacteria C. Red photosynthetic bacteria D. Nitrosomonas europaea
Diabetes and heredity are both considered to be contributory factors for development of heart disease.
a. true b. false
Why is an open circulatory system less efficient than a closed circulatory system?
A. Metabolic wastes cannot be removed from tissues in an open circulatory system. B. It is more difficult to quickly deliver O2 to specific tissues when needed with an open circulatory system. C. There is no heart to pump the blood in an open circulatory system. D. Open circulatory systems lack respiratory pigments that bind to oxygen. E. Blood cannot be used to transport nutrients in an open circulatory system.