The process of denitrification involves the transformation of ________.
A. nitrate to nitrogen gas
B. ammonia to organic matter nitrogen
C. nitrogen gas to ammonia
D. ammonia to nitrate
Answer: A
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Describe how population size of lobsters affects the extent of kelp forests on the North Atlantic coast of North America
What will be an ideal response?
Osteoporosis is enhanced by
a. deficient levels of calcium and vitamin D. b. lack of physical activity. c. smoking and excessive alcohol intake. d. excessive intake of cola drinks e. all of these.
Which one of the following sexually transmitted diseases is caused by bacteria?
A) chlamydia B) genital herpes C) hepatitis B D) genital warts E) trichomoniasis
Carl Woese and George Fox proposed the (phylum/domain/family), a taxon that contains multiple kingdoms
What will be an ideal response?