Ecology Created by Educational Technology Network. www.edtechnetwork.com 2009

Populations Relationships Food Webs and Pyramids Cycles Biomes 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50

Topic 1 – 10 Points QUESTION: ANSWER: All Plants and animals in a given area make up the: ANSWER: Community

Topic 1 – 20 Points QUESTION: ANSWER: Rocks, water, and sunlight are all _________ factors ANSWER: Abiotic

Topic 1 – 30 Points QUESTION: ANSWER: Describe the shapes of these population growth curves: ANSWER: J-Curve and S-Curve

Topic 1 – 40 Points QUESTION: ANSWER: The niche of bacteria and fungi in the environment is: ANSWER: Decomposers

Topic 1 – 50 Points QUESTION: ANSWER: Organize the levels of the biosphere from smallest to largest. ANSWER: Organism, population, community, ecosystem.

Topic 2 – 10 Points QUESTION: ANSWER: The relationship in which both organisms benefit, like digestive bacteria and us, is called: ANSWER: Mutualism

Topic 2 – 20 Points QUESTION: ANSWER: When one organisms benefits and another is harmed is an example of: ANSWER: Parasitism

Topic 2 – 30 Points QUESTION: ANSWER: The type of relationship that sharks and remoras have, where one benefits and the other is unaffected, is known as: ANSWER: Commensalism

Topic 2 – 40 Points QUESTION: ANSWER: If a bison and a grasshopper are both eating grass in the prairie, what type of relationship do they have? ANSWER: Competition

Topic 2 – 50 Points QUESTION: ANSWER: OK, so it’s a stretch, but let’s say there are 2 populations in different areas. One is under carrying capacity, the other one is over. Which one would have greater competition among its members? ANSWER: The one over its carrying capacity

Topic 3 – 10 Points QUESTION: ANSWER: The feeding patterns of all organisms in an ecosystem is called a: ANSWER: Food Web

Topic 3 – 20 Points QUESTION: ANSWER: In this energy pyramid, which levels are heterotrophs? ANSWER: Levels 2, 3, and 4

Topic 3 – 30 Points QUESTION: ANSWER: In the following pyramid, which energy level has the least amount of energy? ANSWER: The top level

Topic 3 – 40 Points QUESTION: ANSWER: In the following food chain, what is the effect if you were to remove the grasshopper? Grass  Grasshopper  Snake  Hawk ANSWER: The snake and hawk would decline in population

Topic 3 – 50 Points QUESTION: ANSWER: In an energy pyramid, if there are 100,000 J of energy in the producers, how many Joules of energy would be available to the tertiary consumers? ANSWER: 100 J

Topic 4 – 10 Points QUESTION: ANSWER: In which stage of the water cycle does water turn from a liquid into a gas? ANSWER: Evaporation

Topic 4 – 20 Points QUESTION: ANSWER: Why are there bacteria in the roots of bean plants? ANSWER: To transform atmospheric nitrogen into a usable form

Topic 4 – 30 Points QUESTION: ANSWER: Respiration, burning of fossil fuels and decomposition all release which gas into the atmosphere? ANSWER: Carbon dioxide

Topic 4 – 40 Points QUESTION: ANSWER: In the water cycle, plants also release water through the process of: ANSWER: Transpiration

Topic 4 – 50 Points QUESTION: ANSWER: When rocks erode, small amounts of which element dissolves in the water? ANSWER: Phosphorus

Topic 5 – 10 Points QUESTION: ANSWER: Which biome contains trees such as spruce, fir, and pine? ANSWER: Taiga

Topic 5 – 20 Points QUESTION: ANSWER: Which biome has groundcover but no tall trees, little rainfall, and frozen soil beneath the surface? ANSWER: Tundra

Topic 5 – 30 Points QUESTION: ANSWER: In this biome, there are rabbits and deer, with moderate temperatures and trees that lose their leaves during winter. ANSWER: Deciduous forest

Topic 5 – 40 Points QUESTION: ANSWER: This biome has high humidity, temperature, and rainfall, with lots of biodiversity ANSWER: Tropical rainforest

Topic 5 – 50 Points QUESTION: ANSWER: What 2 factors are most important in determining the distribution of biomes around the world? ANSWER: Temperature and precipitation