Brian is given an unknown element that is bright when sunlight hits it. he has a hammer and an electrical source. if he attached the electrical source, what might happen if the substance is a metalloid?

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

the missing space is phylum