Bilateral symmetry is characteristic of

a. cnidarians.
b. sponges.
c. jellyfish.
d. flatworms.
e. corals.


Answer: d

Biology & Microbiology

You might also like to view...

Capturing energy by animals is in effect a process that utilizes ________ and produces ________.

A. ATP; AMP B. nitrogen; H2O C. carbon dioxide; oxygen D. oxygen; carbon dioxide E. N2; carbon

Biology & Microbiology

Which of the following reproductive barriers actually prevents individuals of different species from mating with each other?

a. gametic isolation b. behavioral isolation c. hybrid sterility d. hybrid breakdown e. hybrid inviability

Biology & Microbiology

The early placental membrane has all of the following layers, EXCEPT:

A. Connective Tissue B. Cytotrophoblasts C. Endothelium of Fetal Capillaries D. Endothelium of Maternal Capillaries E. Syncytiotrophoblasts

Biology & Microbiology

Jess has A- blood type, has never received a blood transfusion, and never been pregnant. Antibodies against what blood antigens could be present in Jess' blood?

A. O and Rh antigens B. B antigens C. A antigens D. B and Rh antigens E. O antigens

Biology & Microbiology