Cells with one of each kind of chromosomes are described by the term
A) polyploid
B) diploid
C) triploid
D) haploid
Ans: D) haploid
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The Intergovernmental Panel on Climate Change reported in 2007 that atmospheric carbon dioxide levels will nearly double by the end of this century. If this happens, what will be the atmospheric concentration of carbon dioxide?
A. 1.5 ppm B. 1.75 ppm C. 385 ppm D. 560 ppm E. 700 ppm
Draw the relationship between the four main types of plants, bryophytes, seedless vascular plants, gymnosperms, and angiosperms. Make sure to include the main adaptations that occurred at each transition.
What will be an ideal response?
Monsoon cycles are a result of_____
a. rain shadows b. seasonal reversals of wind direction c. microclimate d. proximity to the ocean e. adiabatic cooling
An antigen is any substance that triggers an immune response
a. true b. false