Niches of two coexisting species of pond snail of the same genus are likely to be similar, but not identical, because of which of the following?

I. Closely related species use similar resources.

II. Competitive interactions exist between these species. 

III.  Unlimited resources are available.

TLS Online TPP Program

#Question id: 11508

#Unit 9. Diversity of Life Forms

Which of these taxa contains species that produce potent toxins that can cause extensive fish kills, contaminate shellfish, and poison humans?

TLS Online TPP Program

#Question id: 11636

#Unit 9. Diversity of Life Forms

Which of the following pairs of protists and their characteristics is mismatched?

TLS Online TPP Program

#Question id: 11637

#Unit 9. Diversity of Life Forms

Which of these statements about dinoflagellates is false?

TLS Online TPP Program

#Question id: 11638

#Unit 9. Diversity of Life Forms

Which group includes members that are important primary producers in ocean food webs, causes red tides that kill many fish, and may even be carnivorous?

TLS Online TPP Program

#Question id: 11639

#Unit 9. Diversity of Life Forms

You are given an unknown organism to identify. It is unicellular and heterotrophic. It is motile, using many short extensions of the cytoplasm, each featuring the 9+2

filament pattern. It has well-developed organelles and three nuclei, one large and two small. This organism is most likely to be a member of which group?

TLS Online TPP Program

#Question id: 11640

#Unit 9. Diversity of Life Forms

Which of the following is not characteristic of ciliates?