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Ecosystems

Instructions: answer the questions, check them carefully, and when you are sure they are all right, press submit. The number of correct answers will be displayed.

Question 1: Which of these is the biome where orangutans live?





Question 2: Which factor is of greatest importance in defining a biome?




Question 3: What is the greatest input of energy to an ecosystem?





Question 4: What is the term for a single species in a certain area?




Question 5: What are the nutrient levels of an ecosystem called?




Question 6: Which of the following is least inclusive?





Question 7: Which is not true of Protista?




Question 8: Which of the following contains prokaryote organisms capable of surviving extreme conditions of heat and salt concentration?





Question 9: Which of the following is best characterised as being eukaryotic, heterotrophic, and having cell walls made of chitin?





Question 10: In which of the following pairs are the organisms most closely related?





Question 11: Bilateral symmetry, protostome, acoelomate, triploblastic





Question 12: Bilateral symmetry, deuterostome. An example is a frog.





Question 13: Bilateral symmetry, pseudocoelomate, triploblastic





Question 14: Radial symmetry, diploblastic, acoelomate





Question 15: Bilateral symmetry in the larval stage, radial symmetry as an adult, deuterostome, endoskeleton





Question 16: All organisms in this kingdom contain stinging cells:





Question 17: A randomly selected group of organisms from a family would show more genetic variation than a randomly selected group from a:





Question 18: The only taxon that actually exists as a natural unit is:





Question 19: Which of the following is NOT generally a characteristic of complex, advanced organisms?





Question 20: Which of the following levels of organisation is arranged in the correct sequence from most to least inclusive? (inclusive means that it contains more different types of organisms)




Question 21: Biological control of an invasive species of a plant would include:




Question 22: An introduced or invasive species:




Question 23: A population is correctly defined as having which of the following characteristics?
I. inhabiting the same general area
II. individuals belonging to the same species
III. possessing a constant and uniform density and dispersion





Question 24: The most important factor(s) affecting the distribution of biomes is/are:





Question 25: Which of these is NOT an abiotic factor?





Question 26: Which of these is NOT a biotic factor?





Question 27: Which of these are important biotic factors that can affect the structure and organisation of biological communities?





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