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Tenth Grade (Grade 10) Ecology Questions

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Grade 10 Communities, Populations, and Ecosystems
What is climate?
  1. The weather on any given day.
  2. The amount of rainfall in a month.
  3. Year by year patterns of temperature and precipitation.
  4. The forecast for 10 days.
Grade 10 Biogeochemical Cycles
Choose the correct order of events in the nitrogen cycle.
  1. Nitrogen is in air, bacteria fix nitrogen, animals get nitrogen from plants, animals die and decompose.
  2. Animals die and decompose, animals get nitrogen from plants, nitrogen is in air, bacteria fix nitrogen.
  3. Bacteria fix nitrogen, nitrogen is in air, animals get nitrogen, animals die and decompose.
  4. Nitrogen is in air, animals get nitrogen from plants, bacteria fix nitrogen, animals die and decompose.
Grade 10 Communities, Populations, and Ecosystems
Ecosystems differ from communities in that ecosystems usually contain what?
  1. several climates
  2. several communities
  3. only one habitat
  4. only one food web
Grade 10 Biomes
A rain forest is an example of a(n)
  1. organic molecule.
  2. ecosystem.
  3. controlled experiment.
  4. electron transport chain.
Grade 10 Food Chains and Webs
Organisms that make their own food are                .
  1. autotrophs
  2. heterotrophs
  3. carnivores
  4. omnivores
Grade 10 Food Chains and Webs
Trophic levels describe                             in a community.
  1. the energy available
  2. succession
  3. predator-prey relationships
  4. competition
Grade 10 Biomes
This biome has four seasons.
  1. desert
  2. tropical rainforest
  3. grassland
  4. temperate deciduous forest
Grade 10 Food Chains and Webs
How does energy flow through an ecosystem?
  1. from consumers to producers to the Sun to the atmosphere
  2. from producers to the atmosphere to consumers to the Sun
  3. from the Sun to producers to consumers to the atmosphere
  4. from the Sun to consumers to the atmosphere to producers
Grade 10 Biomes
Earth's coldest and harshest biome is the
  1. tropical seasonal forest.
  2. taiga.
  3. temperate forest.
  4. tundra.
Grade 10 Food Chains and Webs
Which statement about energy is TRUE?
  1. Energy is not recycled, but it is converted from one form to another.
  2. Producers eat other organisms to obtain energy.
  3. Consumers make sugar through photosynthesis.
  4. Some types of bacteria can form carbon dioxide that plants and animals need.
Grade 10 Communities, Populations, and Ecosystems
                         are made up of                         , which are groups of interbreeding individuals of the same species.
  1. Communities; populations
  2. Populations; herds
  3. Communities; families
  4. Families; populations
Grade 10 Communities, Populations, and Ecosystems
The scientific study of the human population is
  1. demographic transition.
  2. population.
  3. demography.
  4. age-structure.
Grade 10 Conservation and Biodiversity
Polar bears swim across large expanses of ocean while hunting for seals, their main source of food. The bears use sea ice as resting spots during their long swims. However, the sea ice is rapidly melting as a result of global warming. Which statement describes what MOST LIKELY will happen if global warming continues at its present rate?
  1. Polar bear and seal populations will both increase.
  2. Polar bear populations will decrease, and seal populations will decrease.
  3. Polar bear populations will increase, and seal populations will decrease.
  4. Polar bear populations will decrease, and seal population will remain the same.
Grade 10 Food Chains and Webs
What happens when a species has no natural predators?
  1. The species dies.
  2. The species moves.
  3. The species' population grows.
  4. The species' population declines.
Grade 10 Biomes
All life on Earth exists in
  1. the biosphere.
  2. ecology.
  3. a biome.
  4. an ecosystem.
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