Human skin color varies widely around the world, and children do not always exhibit the exact same coloring as their parents. based on this information, what is true about human skin color? is it a.
skin color is not a genetic trait. or b.
a single pair of alleles controls this trait. c.
it’s an example of incomplete dominance. d.
it’s an example of polygenic inheritance.

Class iii atmospheric hazards are those involving

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same

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