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.
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Bacterial chromosomes typically have several origins of replication
Indicate whether the statement is true or false
Symptoms of infectious mononucleosis include. Select all apply:
a. sore throat b. bloody stool c.fatigue d. jaundice e. fever
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