How did Theodor Engelmann determine which colors of light were used in photosynthesis?
What will be an ideal response?
Engelmann used a prism to split light into its component colors and shined this light on green algal filaments. He then looked to see where bacteria congregated. He made the assumption that bacteria would congregate wherever oxygen concentration was high, and that high oxygen concentrations would be in areas of active photosynthesis. Based on where the bacteria congregated, Engelmann was able to determine which wavelengths of light produced optimal photosynthetic conditions.
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Translocations and inversions represent a change in the total genetic material of a chromosome
Indicate whether the statement is true or false
Damage to the _______ is likely to have the most direct effect on the ability to store memories
a. cerebellum b. reticular formation c. medulla oblongata d. hypothalamus e. hippocampus
During which phase of mitosis are the nuclei reformed?
a. anaphase b. prophase c. cytokinesis d. telophase e. metaphase
A cnidarian that builds a calcium carbonate skeleton is a(n)
A) crab. B) snail. C) clam. D) oyster. E) coral.