Use the cladogram below to answer the questions that follow

Question

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

mammary glands
mammary glands

notochord
notochord

placenta
placenta

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

humans and trout
humans and trout

humans and lizards
humans and lizards

humans and lampreys
humans and lampreys

humans and wallabies
humans and wallabies
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.

Answer 1

To answer the questions based on the information provided about the cladogram, here are the responses:

Question 1: Which characteristic is shared by humans, wallabies, and trout?

• Response: notochord
  (All vertebrates, including humans, wallabies, and trout, have a notochord at some stage of their development.)

Question 2: Which animals have the closest evolutionary relationship, as shown by the cladogram?

• Response: humans and wallabies
  (Humans and wallabies are both mammals and thus are more closely related to each other than to trout or to the other options listed.)

Question 3: A valid conclusion from this cladogram is that

• Response: humans and lampreys share a common ancestor.
  (This is a valid conclusion based on evolutionary relationships shown in cladograms. The other options either do not accurately reflect the relationships or are incorrect.)

Let me know if you need further assistance!