Helminthic diseases are usually transmitted to humans by
A) respiratory route.
B) genitourinary route.
C) gastrointestinal route.
D) vectors.
E) aerosols.
C
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All cells except bacteria and archaea
a. are eukaryotes. b. possess a nucleus. c. use organelles for compartmentalization. d. have a dynamic “skeleton” of proteins. e. are all of these.
Which one of the following factors would NOT influence the productivity of an ocean community?
A. the presence of nitrogen-fixing cyanobacteria B. the season of the year C. levels of autotrophs D. fertilizer runoff E. the amount of rainfall Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about productivity? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In an allergic reaction, histamine is released from _______ cells found in peripheral tissues.
Fill in the blank(s) with the appropriate word(s).
Prokaryotes split into two lines early in the history of life. The differences are so fundamental that they are assigned to two different domains, the ________ and the Bacteria.
Fill in the blank(s) with the appropriate word(s).