Temperature changes can affect the ability of water to dissolve and keep materials in solution. Which statement below is an appropriate hypothesis concerning water temperature and dissolved oxygen?
A) Lower water temperatures allow for lower concentrations of dissolved oxygen.
B) Higher water temperatures allow for higher concentrations of dissolved oxygen.
C) Lower water temperatures allow for higher concentrations of dissolved oxygen.
D) Water temperatures do not affect the concentration of dissolved oxygen.
Ans: C) Lower water temperatures allow for higher concentrations of dissolved oxygen.
You might also like to view...
The areas that have received the greatest attention in genetically modified plants are _____
A) improved product quality and increased pest and herbicide resistance B) improved product quality, more rapid growth rate through plant hormone production, and decreased herbicide resistance C) more rapid growth rate through plant hormone production, pharmaceutical production, and increased antibiotic resistance D) pharmaceutical production, production of useful compounds not normally found in nature (xenobiotics), and the ability to remove or neutralize toxic compounds from the environment (bioremediation)
Short tandem repeats (STRs) are highly variable sets of repeating sequences within the genome. Because the probability of any two having an identical number of repeats at different STR regions within the genome is astronomically low, they are useful for identifying samples of DNA. With so much variability in these regions of DNA, one would assume that STRs:
A) occur outside of protein-coding regions of DNA. B) are responsible for the physical and biochemical variation among individuals. C) are introns. D) are not inherited the same way as other genes. E) are always homozygous
A cline is:
a. a temporal gradient in the frequency of genotypes and phenotypes. b. a spatial gradient in the frequency of genotypes and phenotypes. c. an area of resource competition. d. an area of assortative mating.
Which of the following statements about G-protein-coupled receptors (GPCRs) is false?
(a) GPCRs are the largest family of cell-surface receptors in humans. (b) GPCRs are used in endocrine, paracrine, and neuronal signaling. (c) GPCRs are found in yeast, mice, and humans. (d) The different classes of GPCR ligands (proteins, amino acid derivatives, or fatty acids) bind to receptors with different numbers of transmembrane domains.