Even though echinoderms are considered advanced invertebrates, they are radially symmetric in a way similar to the simple cnidarians. What advantage does radial symmetry confer upon echinoderms?
What will be an ideal response?
Echinoderms are slow moving animals. As a result, they would be at a disadvantage if all of their sense organs were concentrated at one end of their bodies. For this reason, a better arrangement for their lifestyle would be radial symmetry by which they would be able to sense their environment from all directions.
You might also like to view...
Infection always leads to disease
Indicate whether this statement is true or false.
Which subatomic particles are found outside the nucleus of an atom?
a. Neutrons b. Protons c. Electrons d. Photons
Four of the five genotypes listed below are purebreeding
Select the exception. a. AA BB b. Aa BB c. AA bb d. aa BB e. aa bb
In order to be considered extinct, a species can't be found
A) at all, in the wild or in captivity at the present time. B) at all, presently or during the past 10 years. C) at all, presently or during the past 50 years. D) in the wild presently but may exist in captivity.