The ________ drift up to the stratosphere, where UV radiation causes them to break down to their atomic form, one of which breaks down ozone
Fill in the blank(s) with correct word
chlorofluorocarbons
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The most likely identification of an anaerobic gram-positive bacillus that is a very large fusiform bacillus with one pointed end and one blunt end is:
a. Eubacterium. b. Veillonella. c. Leptotrichia. d. Propionibacterium.
In saltatory conduction, the membrane is depolarized only in the region of the myelin sheath
____________________ Indicate whether the statement is true or false.
Electron microscopes use electrons rather than light to view a specimen. Some of these microscopes pass a stream of electrons through a specimen. Both the stream of electrons and the specimen must be in a vacuum chamber. What is a limitation of using such an electron microscope?
A) Living specimens cannot be observed. B) Prokaryotic cells cannot be examined. C) Images appear very fuzzy because of low resolution. D) The power of magnification decreases.
Chemosynthetic producers obtain energy by the oxidation of ammonia, nitrites, and sulfides, using this energy to make organic compounds.
Answer the following statement true (T) or false (F)