Select the following phylum that includes animals that are unsegmented, acoelomate, and have a digestive cavity with a single opening.
A. Annelida
B. Platyhelminthes
C. Nematoda
D. Cnidaria
E. Rotifera
B. Platyhelminthes
Biology & Microbiology
You might also like to view...
____ asteroids appear to have nickel-iron compositions and may be the cores of broken asteroids
a. S-type b. M-type c. C-type
Biology & Microbiology
Which greenhouse gas is released by bacteria engaged in anaerobic metabolism?
a. nitrous oxide b. carbon dioxide c. methane d. ozone
Biology & Microbiology
dentical twins result from a single fertilization to form a zygote, which then clones itself.
a. true b. false
Biology & Microbiology
Which hypersensitivity disorder is the result of cell-mediated response?
A) type I B) type II C) type III D) type IV E) both type I and II
Biology & Microbiology