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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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