McGraw-Hill Online Learning Center Test

McGraw-Hill Online Learning Center Test


1. Review the image and answer the following questions.

Of the organisms shown here, which were the first vertebrates to possess an immune system based on lymphocytes?

A. lampreys
B. tunicates
C. bony fishes
D. jawed fishes


2. Of the organisms shown here, which were the first vertebrates to possess an immune system based on specific T and B lymphocytes?

A. lampreys
B. tunicates
C. bony fishes
D. jawed fishes
Copyright ©2000 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.
For further information about this site contact mhhe_webmaster@mcgraw-hill.com
or let us know what you think by filling out our site survey.

Corporate Link