7. True/False: Divergent evolutionary paths of descent provide for totally diffe

Question

7. True/False: Divergent evolutionary paths of descent provide for totally different species in similar niches. 8. Photosynthetic organisms (green plants) can continue to photosynthesize at depths where little light can penetrate. Chlorophyl-a does not conduct all the photosynthetic activity, but in addition a series of enhance the photosynthetic process for marine phytoplankton. 9. True/False: The marine Class Cephalopoda which include species of nautilus, octopus and squid do not have a counterpart in terrestrial ecosystems. 10. All of the following are adaptations of fish to aquatic environments EXCEPT: (a) torpedo shape; (b) gills, (c) cryptic coloration, (d) salt glands.

Explanation / Answer

Divergent evolution is splitting of one common ancestor jnto two different species. This statement is false because in similar niches the species of similar common ancestor will be similar.

8. Accessory photosynthetic pigments

9. False

10. Cryptic coloration is present in terestrial animals also. It helps an animal to camoflouge or warn the predators.

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