Animals with internal backbones, including all fish, amphibians, ...

[lbcchick]

Animals with internal backbones, including all fish, amphibians, birds, reptiles, and mammals are called ________________.
 
  Fill in the blank(s) with the appropriate word(s).

Question 2

_______________animals have no internal backbone, and their skeleton is usually located on the exterior of the body rather than the interior.
 
  Fill in the blank(s) with the appropriate word(s).

[BAOCHAU2803]

Answer to Question 1

Vertebrate

Answer to Question 2

Invertebrate

[lbcchick]

TYSM

[sailorcrescent]

Thanks for the timely response, appreciate it