Which of these is a proper contrast between birds and mammals?
A) Birds are cold-blooded; mammals are warm-blooded.
B) Birds are egg laying; no mammals lay eggs.
C) Birds have air sacs in addition to lungs; mammals have no air sacs.
D) Birds lack a septum between the ventricles; mammals have a septum between the ventricles.
E) Birds,unlike mammals,require no parental care.
Correct Answer:
Verified
Q8: Defining characteristics of chordates are
A) segmentation, dorsal
Q17: The cartilaginous fishes include all EXCEPT
A)lampreys.
B)dogfish shark.
C)skates.
D)rays.
E)whale
Q18: Amphibians are NOT considered to be fully
Q19: Sharks
A)have bone skeletons.
B)lack jaws.
C)have a keen sense
Q20: In vertebrates,the _ is/are usually replaced by
Q22: The duckbill platypus is an exception to
Q23: Which of these characteristics is NOT associated
Q24: Which of these characteristics is NOT found
Q24: Endothermic animals with four-chambered hearts include the
A)
Q25: Which of the following features is NOT
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents