Mendel used the garden pea to determine the inheritance of traits.
<span>A trait that improves the fitness of its bearer, compared with individuals without the trait.</span>
Chordates (phylum Chordata) are animals which are either vertebrates or one of several closely related invertebrates. They are united by having, for at least some period of their life cycle, a notochord, a HOLLOW DORSAL NERVE CORD
