Mosses have threadlike structures, called ____, that hold the gametophyte in place
a. mycorrhizae
b. fronds
c. rhizoids
d. sporangia
e. rhizomes
ANSWER: c
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Which approach would help to identify biologically produced sulfur in a sediment sample?
A) enrichment B) isotopic fractionation C) microautoradiography D) microelectrodes
The cerebellum functions in:
A. memory storage B. emotions C. balance and motor skills D. basal body functions like heart function and respiratory rate
Whenever the body is exposed to an allergen, the IgE
antibodies cause a. the production of prostaglandins and histamine. b. the release of antihistamines. c. the suppression of the inflammatory response. d. the production of clonal cells. e. all of these.
Which type of arboviral encephalitis was introduced to the United States in 1999 and is maintained in a bird-mosquito-bird cycle?
a) Eastern equine encephalitis b) Japanese encephalitis c) West Nile virus d) California encephalitis