2. Joe is still mad and he doesn't understand Vicky's explanation. He says "You aren't even speaking
English! What does heterozygous meanWhat's a recessive allele? And what's the connection
between alleles and skin color Answer his questions

the answer would be d

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

d. organisms have cells with different shapes and functions.

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

hope it ,

bioteacher101