Examine the head of the model and how the muscles of the head and neck are located with respect to the salivary glands. What muscle is immediately deep to the parotid gland

answer; a male inherits only one allele of the x-linked gene controlling hair color;

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".