list which traits are possessed for the following
placenta,
vertebrae,
mammary glands,
two pairs of limbs,
for the
shark,
kangaroo,
chimpanzee,
bullfrog
Placenta: chimpanzee
Vertebrae: all organisms
Mammary glands: chimpanzee
Two pairs of limbs: chimpanzee, kangaroo
Shark - Vertebrae
Kangaroo - Placenta
Chimpanzee - Mammary glands
Bullfrog - Two pairs of limbs