Question

list which traits are possessed for the following

placenta

vertebrae

mammary glands

two pairs of limbs

shark
kangaroo
chimpanzee
bullfrog

Answer 1

Placenta: Kangaroo, Chimpanzee

Vertebrae: Kangaroo, Chimpanzee, Bullfrog

Mammary glands: Kangaroo, Chimpanzee

Two pairs of limbs: Kangaroo

Shark: Vertebrae, Two pairs of limbs

Kangaroo: Placenta, Vertebrae, Mammary glands

Chimpanzee: Placenta, Vertebrae, Mammary glands

Bullfrog: Vertebrae

Answer 2

wrong

Answer 3

My apologies, here are the correct answers:

Placenta: Kangaroo, Chimpanzee

Vertebrae: Kangaroo, Chimpanzee, Bullfrog

Mammary glands: Kangaroo, Chimpanzee

Two pairs of limbs: Kangaroo

Shark: Vertebrae, Two pairs of limbs

Kangaroo: Placenta, Vertebrae, Mammary glands, Two pairs of limbs

Chimpanzee: Placenta, Vertebrae, Mammary glands

Bullfrog: Vertebrae