The evolutionary relationship amongst different animals species has been identified using:
A. DNA analysis
B. Embryological features
C. Developmental patterns
D. Adult body forms
E. More than one above
Ans: E. More than one above
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Rotifers obtain their food by the action of
(a) tentacles. (b) cilia on the wheel organ. (c) a muscular pharynx. (d) pseudopodia.
The showy leaflike parts of flowers with distinctive colors, patterns, and shapes that help attract pollinators are known
as ____.
a. sepals b. petals c. stamens d. filaments e. carpels
What are the characteristics of red light, which is absorbed by chlorophylls?
A. Its photons have the shortest wavelength in the visual spectrum B. It is not considered a part of the visual spectrum C. Its photons have the highest energy in the visual spectrum D. Its photons have the longest wavelength in the visual spectrum
Which of the following is a colonial organism closely related to the evolutionary precursors of present-day plants?
a. Euglena b. Dictyostelium discoideum c. Volvox d. Arabidopsis thaliana