Helminthic diseases are usually transmitted to humans by

A) respiratory route.
B) genitourinary route.
C) gastrointestinal route.
D) vectors.
E) aerosols.


C

Biology & Microbiology

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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?

Biology & Microbiology

In an allergic reaction, histamine is released from _______ cells found in peripheral tissues.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

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).

Biology & Microbiology

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.

Biology & Microbiology