A primary purpose for the use of stains in microscopy is to increase the (magnification/brightness/contrast) of a specimen.
Fill in the blank(s) with the appropriate word(s).
contrast
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The structural diversity of carbon-based molecules is based upon which of the following properties?
A. the ability of carbon to form four covalent bonds B. the ability of those bonds to rotate freely C. the orientation of those bonds in the form of a tetrahedron D. None of these choices is correct. E. All of these choices are correct.
During ____, microtubules fasten the cell’s chromosomes to the spindle poles
a. prophase I b. anaphase II c. metaphase I d. metaphase II e. telophase I
In sweet peas, dominant alleles C and P are necessary for colored flowers. In the absence of either (__ pp or cc __) or
both (cc pp), the flowers are white. Give the probable genotype of a plant with colored flowers and a plant with white flowers that produced 38 plants with colored flowers and 42 plants with white flowers. What will be an ideal response?
In aquatic ecosystems one of the major factors that determines the carrying capacity is the
A. amount of nutrients in the water. B. amount of competition among different species. C. quantity of plants in the ecosystem. D. natality.