A cell is minimally defined by which of the following:
a. an organized chemical system.
b. specialized molecules.
c. a nucleus.
d. a membrane.
e. an organized chemical system and specialized molecules surrounded by a membrane.
E
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A woman is being treated for systemic lupus erythematosus (SLE). She has an increased risk of opportunistic infections. Based on what you know about SLE and the treatment for it, propose why she has an increased risk of opportunistic infections
What will be an ideal response?
Researchers can deliver genes into plants by using ____
a. PCR b. DNA sequencing c. electric or chemical shocks d. gel electrophoresis e. DNA segmentation
Nociceptors are also known as
a. mechanoreceptors. b. pain receptors. c. thermoreceptors. d. osmoreceptors. e. all EXCEPT “osmoreceptors.”
What was the approximate size of the human population in the year 2008?
A) 1.6 billion B) 2.6 billion C) 3.6 billion D) 6.6 billion E) 10 billion