Biology, 09.03.2021 03:50 bre2354

PLEASE HELP ME 1. Which statement best describes a polygenic trait?(1 point) -A polygenic trait is only controlled by one environmental factor.
-A polygenic trait is only controlled by multiple environmental factors
-A polygenic trait is only controlled by one gene and influenced by the environment.
-A polygenic trait is controlled by multiple genes and influenced by the environment.
2. Which environmental factor influences the gender of alligators?(1 point)
-temperature
-diet
-sunlight
-moisture
3. Which statement is true?(1 point)
-There is little variation in Mendelian traits.
-Mendelian traits are controlled by multiple genes.
-Environment strongly influences Mendelian trait expression.
-Hair color and IQ are examples of Mendelian traits.
4. Use the graph to answer the question.
Height in humans is a polygenic trait with a distribution similar to the graph shown. Which is true concerning the distribution of height in human populations?(1 point)
-Most individuals will be below average height.
-Most individuals will be above average height.
-Most individuals will be at the extremes of height.
-Most individuals will be of average height.
5. Which statement best describes trait distribution?(1 point)
-Distribution describes the different traits that are found in a species.
-Distribution describes the different traits that are found in a population.
-Distribution describes how the variation in traits is spread across a population.
-Distribution describes how individuals in a population are spread across their habitat.

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