In an ecosystem, energy

A) cycles along with chemical nutrients.
B) typically flows from consumers to producers to decomposers.
C) typically flows from producers to a series of consumers.
D) comes ultimately from bacteria.


Answer: C) typically flows from producers to a series of consumers.

Biology & Microbiology

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Symptoms of infectious mononucleosis include. Select all apply:

a. sore throat b. bloody stool c.fatigue d. jaundice e. fever

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The various techniques by which scientists manipulate DNA in the lab are termed ________.

A. genetic engineering B. biotechnology C. recombinant DNA D. gel electrophoresis E. gene probes

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Which of the following systems is the only one to

have direct interactions with the other four? a. digestive b. urinary c. circulatory d. respiratory e. endocrine

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Bacterial chromosomes typically have several origins of replication

Indicate whether the statement is true or false

Biology & Microbiology