Why are viruses not considered to be alive? What will be an ideal response?
ANSWER: The first reason is that viruses are not cells, and cell theory states that all living things are
cells. The second reason is that viruses are unable to replicate on their own and depend on
host cells to facilitate the process.
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The earliest fossils found appear to be from the domain Bacteria. From which group of bacteria are these fossils?
a. Staphylococcus b. nitrogen-fixing bacteria c. cyanobacteria d. various lactobacilli
Red muscle fibers are red because they contain large amounts of ____
a. glucose b. ribosomes c. ATP d. myoglobin e. hemoglobin
Your neighbor tried to lift a propane tank onto the back of his pickup truck and ruptured the cartilaginous disk between two of his vertebrae. What is most likely to happen to him?
A) He will have bloody stools. B) He will suffer pain from a compressed spinal nerve. C) He might have severe brain damage. D) His spinal nerve cord will enlarge.
All of the following are classified as fungi EXCEPT
A) Blastomyces. B) Coccidioides. C) Histoplasma. D) Mycobacterium. E) Pneumocystis.