Choose the correct statement.

a. a molecule having a covalent bond can be ionic.

b. a molecule having a covalent bond is always polar.

c. a molecule having a covalent bond may be polar or nonpolar.

d. a molecule having a covalent bond is always nonpolar

Australopithecus robustus was likely the longest-surviving species of australopithecine in south africa. it had: a. large molars, a big face, and a sagittal crest. b. a large body, large teeth, and a sagittal crest. c. a big brain, big teeth, and a big face. d. a big face, large teeth, and a large body