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Search Results for population - All Grades

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Grade 11 Evolution
Evolution is a change in the                       , not the                       .
  1. individual; population
  2. population; genes
  3. population; individual
  4. Individual; gene
Grade 9 Communities, Populations, and Ecosystems
The maximum amount of individuals an environment can support is the
  1. population size.
  2. carrying capacity.
  3. population model.
  4. population density.
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 8 Food Chains and Webs
Suppose that the pesticides used by humans have killed many of the herbivores in an ecosystem. What will most likely happen?
  1. The populations of plants will increase, and the populations of carnivores will decrease.
  2. The populations of carnivores will increase, and the populations of plants will decrease.
  3. The populations of both plants and carnivores will decrease.
  4. The populations of both plants and carnivores will increase.
Grade 5 Communities, Populations, and Ecosystems
In an ecosystem, birds depend on insects to survive. If someone spreads pesticide to control the insect population, which of the following is most likely to happen?
  1. The bird population will increase.
  2. The bird population will decrease.
  3. The bird population will decrease, then increase.
  4. The bird population will increase, then decrease.
Grade 5 Communities, Populations, and Ecosystems
In an ecosystem, birds depend on insects to survive. If pesticide is spread to control the insect population, which result is most likely to happen?
  1. The bird population will increase.
  2. The bird population will decrease.
  3. The bird population will decrease, then increase.
  4. The bird population will increase, then decrease.
Grade 9 Communities, Populations, and Ecosystems
Emigration is known for changes in population that result in
  1. no change.
  2. a population increase.
  3. a population decrease.
  4. no change initially but a decrease in population eventually.
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.
College Communities, Populations, and Ecosystems
The                             rate of the predator population                             as the size of the prey population                            .
  1. death, increases, decreases
  2. birth decreases, increases
  3. death, increases,increases
  4. birth, increases, increases
Grade 6 Geography
Which figure is a measurement of how crowded a country is
  1. birthrate
  2. death rate
  3. population
  4. population density
Grade 5 Communities, Populations, and Ecosystems
If a population's needs are not met, then what would happen?
  1. The population would grow larger.
  2. The population would get smaller.
  3. The population would not change.
Grade 8 Communities, Populations, and Ecosystems
Which series lists the levels of organization in an ecosystem from the smallest unit to the largest?
  1. population, organism, community, ecosystem
  2. organism, population, ecosystem, community
  3. organism, community, population, ecosystem
  4. organism, population, community, ecosystem
Grade 9 Bodies of Water and Continents
South America is                            , with a population of around 387 million.
  1. 6th most populous continent
  2. 7th most populous continent
  3. 4th most populous continent
  4. 5th most populous continent
Grade 11 Communities, Populations, and Ecosystems
Which list is the levels of organization in an ecosystem in the correct order?
  1. population, community, ecosystem, individual
  2. community, population, ecosystem, individual
  3. individual, community, population, ecosystem
  4. individual, population, community, ecosystem
Grade 9 Africa and Middle East
The population of Botswana is
  1. 2.0 million
  2. 9.5 million
  3. 1.5 million
  4. 4 million
Grade 9 Ecology
When a population is experiencing                   , the population will eventually stop growing.
  1. logistic growth
  2. limiting factors
  3. carrying capacity
  4. exponential growth
Grade 12 Agriculture
What is a population?
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