Explain how you would distinguish thr karyotype of a normal human male from that of a human male with down syndrome.

Which characteristic is common among children who have older parents? a. lower birth weight b. higher social skills c. greater average height d. less access to preschool

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

The bones of the extremities are parts of the a-appendicular skeleton b-axial skeleton c-long bone group d-medial skeleton