After two months, Paine repeated the sampling. In this experiment, he is sampling the
__________.
a. biodiversity
b. first trophic level
c. energy pyramids
d. ecological niche
A
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An egg's polarity determines the orientation of body axes
Indicate whether the statement is true or false.
Dolly the cloned sheep was conceived by inserting
a. a nucleus from an egg cell into an unfertilized egg. b. a nucleus from a body cell into an unfertilized egg. c. a nucleus from a sperm cell into an unfertilized egg. d. two nuclei from body cells into an enucleated egg cell. e. a nucleus from a body cell into an enucleated egg cell.
Which membranes occur in paired sheets?
a. synovial b. cutaneous c. mucous d. serous e. basement
Western blotting is an immunological test used to identify the antigens in an individual suspected of having Lyme disease.
a. true b. false