試題詳解

9. Which of the following characteristics supports molecular evidence for combining the dinoflagellates, apicomplexans, and ciliates in the monophyletic clade Alveolata?
(A) All are pathogenic.
(B)Their flagella or cilia are organized with the 9 + 2 microtubular ultrastructure.
(C) All are found exclusively in freshwater or marine habitats.
(D) All possess mitochondria.

(E) The three groups have small membrane-bound alveoli under their cell surfaces.