which statement best describes a polygenic trait?(1 point) responses a polygenic trait is only controlled by multiple environmental factors. a polygenic trait is only controlled by multiple environmental factors. a polygenic trait is controlled by multiple genes and influenced by the environment. a polygenic trait is controlled by multiple genes and influenced by the environment. a polygenic trait is only controlled by one gene and influenced by the environment. a polygenic trait is only controlled by one gene and influenced by the environment. a polygenic trait is only controlled by one environmental factor.