What is the term used to describe relatively small areas with unusually high concentrations of species found there and nowhere else, including many species in high risk of extinction? These areas receive the focus of global conservation efforts
A) Natural wildlife reserve
B) Biodiversity hot spot
C) Protective wilderness refuge
D) Protective conservation zone
B
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The protein-coding region of a eukaryotic gene ____
a. can be amplified directly from the genome b. is obtained by producing a cDNA copy from the gene’s transcript c. contains introns, so an mRNA copy must be produced from the gene’s transcript d. contains exons that are removed by restriction enzymes, while the remaining introns are ligated together e. contains introns that are removed by restriction enzymes, while the remaining exons are ligated together
An atom or molecule with an electrical charge is a(n)
A. isomer. B. isotope. C. ion. D. neurotransmitter. E. acid.
When cells withdraw from the continuous cell cycle and enter a "quiescent" phase, which stage are they said to be in?
What will be an ideal response?
Nondisjunction during mitosis leads to:
a. an individual with a clone of abnormal cells. b. an individual with all abnormal cells. c. death of the daughter cells. d. nonviable sperm. e. normal daughter cells.