In the later stages of nitrogen saturation, soils tend to become more acidic, which increases the concentration of aluminum ions in the soil solution
Indicate whether the statement is true or false
TRUE
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As you saw while performing thin layer chromatography, photosynthetic pigments are mostly hydrophobic substances soluble in organic solvents but not in water-based solutions. How does this feature explain the location of these pigments within the chloroplast?
What will be an ideal response?
Amanda is curious to know how many chromosomes are in each somatic cell of a chicken she was relishing. She looks it up and finds that it has 78 chromosomes. Therefore, a sperm or an unfertilized egg from a chicken would contain ________ chromosomes.
A) 23 B) 39 C) 46 D) 78
A single-celled eukaryote that is both photosynthetic and a chemoheterotroph is a(n)
A) apicomplexan. B) dinoflagellate. C) euglenid. D) ciliate. E) kinetoplastid.
The highest rates of reproduction would be expected in which of the following countries?
a. United States b. Germany c. Nigeria d. Argentina e. Russia