Use the cladogram below to answer the questions that follow

Question 1
Which characteristic is shared by humans, wallabies, and trout? (1 point)
Responses

mammary glands
mammary glands

notochord
notochord

four limbs
four limbs

placenta
placenta
Question 2
Which animals have the closest evolutionary relationship, as shown by the cladogram? (1 point)
Responses

humans and lizards
humans and lizards

humans and wallabies
humans and wallabies

humans and lampreys
humans and lampreys

humans and trout
humans and trout
Question 3
A valid conclusion from this cladogram is that(1 point)
Responses

salamanders, trout, and lampreys all have a backbone.
salamanders, trout, and lampreys all have a backbone.

humans and lampreys share a common ancestor.
humans and lampreys share a common ancestor.

four limbs appeared in vertebrate evolution before the notochord appeared.
four limbs appeared in vertebrate evolution before the notochord appeared.

mammary glands appeared in vertebrate evolution after the placenta appeared.
mammary glands appeared in vertebrate evolution after the placenta appeared.
Skip to navigation

The correct answers are:

Question 1: mammary glands
Question 2: humans and wallabies
Question 3: humans and lampreys share a common ancestor