Paraneoplastic syndrome refers to.
A) the effects of substances such as hormones secreted by the tumor cells.
B) severe weight loss and cachexia associated with advanced cancer.
C) the decreased resistance to infection resulting from malignant tumors.
D) the effects of multiple metastatic tumors.
Answer: A) the effects of substances such as hormones secreted by the tumor cells.
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ANSWER: e
a. begins as a gametophyte and ends up as a sporophyte before germination b. is always a sporophyte c. is usually a gametophyte but can be a sporophyte d. begins as a sporophyte and ends up as a gametophyte before germination e. is always a gametophyte
Excessive UV light exposure causes problems with what skin protein?
a. collagen b. elastin c. keratin d. collagen and elastin e. elastin and keratin
The control in an experiment
a. makes the experiment valid. b. is an additional replicate for statistical purposes. c. reduces the experimental errors. d. minimizes experimental inaccuracy. e. is identical to the experimental group, but eliminates the characteristic or treatment being tested.
Each round of reactions in PCR ____ the number of DNA molecules from the target site
a. doubles b. triples c. quadruples d. quintuples e. does not affect