Biodiversity is important in that some organisms and ecosystems naturally break down pollutants.
a. true
b. false
Answer: a. true
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A deletion in the short arm of chromosome 5 is associated with ____ syndrome, which causes intellectual disability, defects in facial development, and an abnormal larynx
a. Down b. Klinefelter c. Turner d. cri du chat e. XYY
Energy is commonly defined as ____.?
a. a form of heat b. ?thermodynamics c. ?the capacity to change d. ?the capacity to do work e. the ability to do work?
The spread of cancer is called ____________________. Fill in the blank(s) with the appropriate word(s)
Which of the following statements about the two paired nucleotide strands of the DNA double helix are correct?
A: The nucleotides that make up one strand of the molecule are joined by hydrogen bonds. B: A-T basepairs have the same width as G-C basepairs. C: The G on one strand forms 3 hydrogen bonds with the C on the complementary strand. D: It is thermodynamically easier to break the bonds between A-T base pairs than between the G-C base pairs. E: A, B and C. F: B, C and D G: C and D