A population with ________ is at risk for extinction
Fill in the blank(s) with correct word
limited genetic variability
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Which of the following is true about genetically modified foods?
a. They have been genetically altered by adding genes from an alternate organism. b. All of their genes have been sequenced, so their entire genome is known. c. Portions of their DNA have been manipulated, and genes have been moved to different chromosomes. d. They have undergone natural selection, and some important genes have been inserted
Which of the following immune system components has been identified in almost all multicellular
organisms? a. bone marrow b. phagocytes c. antimicrobial peptides d. T-cells e. memory cells
The major components of Earth’s atmosphere, from the lowest concentration to the greatest concentration, are:a
carbon dioxide, oxygen, and nitrogen. b. carbon dioxide, nitrogen, and oxygen. c. nitrogen, oxygen, and carbon dioxide. d. nitrogen, carbon dioxide, and oxygen. e. oxygen, nitrogen, and carbon dioxide.
Nitrification of NH3 to NO2– is carried out by ________, whereas NO2– to NO3– is carried out by ________
a. Bacteria / Archaea b. Archaea / Bacteria c. Archaea / Archaea and Bacteria d. Bacteria and Archaea / Bacteria