Blood type is a classic example of codominance.
Why?
A. Both alleles contribute to the
phenotype.
B. Only the dominant allele contributes to
the genotype.
C. Only the recessive allele contributes to
the genotype.
D. Multiple genes contribute to a person's
blood type.

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.

Where is the nictitating membrane found? a. between the eyelid and the eyeball b. between the retina and the optic nerve c. between the outer and middle ear d. in the organ of corti in the middle ear

Match each phylum or class to its correct characteristic