Question

A key characteristic found in all reptiles, birds, and mammals that allowed them to become fully terrestrial is: a. four walking limbs. b. a bony vertebral column. c. an amniotic egg. d. lungs.

Name: a key characteristic found in all reptiles birds and mammals that allowed them to become fully terrestrial is a four walking limbs b a bony vertebral column c an amniotic egg d lungs 97459
Uploaded: 2022-02-27T06:49:18-08:00
Duration: 2 min 11 s
Channel: Sukhada S
Description: a key characteristic found in all reptiles birds and mammals that allowed them to become fully terrestrial is a four walking limbs b a bony vertebral column c an amniotic egg d lungs 97459

          A key characteristic found in all reptiles, birds, and mammals
that allowed them to become fully terrestrial is:
a.
four walking limbs.
b.
a bony vertebral column.
c.
an amniotic egg.
d.
lungs.

Added by Antonio H.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Sukhada S

02/27/2022

Step 1

Step 1: The key characteristic found in all reptiles, birds, and mammals that allowed them to become fully terrestrial is the development of a shelled egg protected by amniotic membranes, known as an amniotic egg. Show more…

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A key characteristic found in all reptiles, birds, and mammals that allowed them to become fully terrestrial is: a. four walking limbs. b. a bony vertebral column. c. an amniotic egg. d. lungs.