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Grade 4 Communities, Populations, and Ecosystems
What is an ecosystem?
  1. place where animals go eat.
  2. place where animals go to graze.
  3. community of plants and animals and the physical environment in which they live.
Grade 7 Taxonomy
The two-name classification system used to organize living things is                       .
  1. the classifying system
  2. biodiversity
  3. binomial nomenclature
  4. organism conservation
Grade 8 Nervous and Endocrine Systems
Neurons are cells that                                         .
  1. give, receive, and handle information
  2. help your body to grow physically larger
  3. you do not have when you are first born
  4. only exist in your lungs
Grade 10 Food Chains and Webs
Most of the energy that fuels ecosystems on Earth comes from                .
  1. chemicals
  2. water
  3. sunlight
  4. bacteria
Grade 8 Development and Reproduction
A type of reproduction that requires two parents is                     .
  1. budding
  2. sexual reproduction
  3. simple division
  4. asexual reproduction
Grade 9 Macromolecules
Amino acids are the building blocks for                .
  1. carbohydrates
  2. DNA and RNA
  3. lipids
  4. proteins
Grade 10 Food Chains and Webs
What organisms make their own food with sunlight or chemical energy?
  1. producers
  2. consumers
  3. decomposers
  4. scavengers
Grade 8 Communities, Populations, and Ecosystems
A community of organisms living together with their physical environment is a(n)                .
  1. biome.
  2. biosphere.
  3. ecosystem.
  4. atmosphere.
Grade 3 Food Chains and Webs
An herbivore is animal that eats only
  1. insects.
  2. meat.
  3. plants.
  4. plants and meat.
Grade 4 Food Chains and Webs
An animal that eats both plants and animals is a(n)
  1. herbivore.
  2. carnivore.
  3. dinosaur.
  4. omnivore.
Grade 3 Food Chains and Webs
A carnivore is an animal that eats only
  1. meat.
  2. plants.
  3. everything.
  4. fruit and meat.
Grade 9 DNA, RNA, and Genetics
Which four nitrogenous bases are found in DNA?
  1. guanine, cytosine, adenine, thymine
  2. guanine, uracil, adenine, cytosine
  3. both a and b
  4. none of the above
Grade 11 Microbiology
Antibiotics are effective medications for                     .
  1. fungi
  2. viral infections
  3. bacterial infections
  4. protozoa
Grade 4 Communities, Populations, and Ecosystems
A living thing's home is its
  1. trait.
  2. habitat.
  3. soil.
  4. food web.
Grade 5 Communities, Populations, and Ecosystems
When does an ecosystem in its best ability to support a variety of organisms?
  1. organisms share food and habitats equally.
  2. competition for food is controlled by humans.
  3. the physical-space needs of organisms are met.
  4. organisms use the parts of the ecosystem differently.
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