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PAWS vocabulary 7th grade
供稿人: Ruffini
  • 1. water cycle
A) a resource that is replace or restored as it is used, by natural process in a reasonable amount of time.
B) any alteration of the natural environment producing a condition harmful to living organisms.
C) path that water takes as it is being cycled through the environment.
  • 2. tissue
A) similar cells acting to perform a specific function.
B) a structure containing different tissues that are organized to carry out a specific function of the body. (Brain, Heart, etc.)
C) any living plant animal or fungus that maintains various vital processes necessary for life.
  • 3. system
A) path that water takes as it is being cycled through the environment.
B) a resource that is replace or restored as it is used, by natural process in a reasonable amount of time.
C) set of objects, organisms, or different parts acting to form a whole.
  • 4. scientific method
A) the factor that is changed in an experiment in order to study changes in the dependent variable.
B) a procedure that is carried out in order to observe a response caused by a stimulus.
C) a plan of inquiry that uses science process skills as a tool to gather, organize, analyze, and communicate information.
  • 5. resource
A) any material that can be used to satisfy a need.
B) a cell structure that contains the cell's genetic material.
C) any alteration of the natural environment producing a condition harmful to living organisms.
  • 6. renewable resource
A) path that water takes as it is being cycled through the environment.
B) a resource that is replace or restored as it is used, by natural process in a reasonable amount of time.
C) the amount of matter an object contains.
  • 7. producer
A) an organism caught or hunted for food by another organism.
B) an organism that makes it's own food from the environment. Usually a green plant.
C) an organism that preys on and consumes animals. Usually an animal.
  • 8. prey
A) an organism that preys on and consumes animals. Usually an animal.
B) an organism that makes it's own food from the environment. Usually a green plant.
C) an organism caught or hunted for food by another organism.
  • 9. predator
A) an organism caught or hunted for food by another organism.
B) an organism that preys on and consumes animals. Usually an animal.
C) an organism that makes it's own food from the environment. Usually a green plant.
  • 10. population
A) all populations of organisms belonging to different species and sharing the same geographical area.
B) a group of organisms of the same species living in a specific geographical area.
C) set of objects, organisms, or different parts acting to form a whole.
  • 11. pollution
A) the amount of matter an object contains.
B) any material that can be used to satisfy a need.
C) any alteration of the natural environment producing a condition harmful to living organisms.
  • 12. photosynthesis
A) a chemical process by which plants trap light energy to convert carbon dioxide and water into carbohydrates(sugars)
B) a structure containing different tissues that are organized to carry out a specific function of the body. (Brain, Heart, etc.)
C) any material that can be used to satisfy a need.
  • 13. organism
A) Any living thing.
B) a group of organisms of the same species living in a specific geographical area.
C) a structure containing different tissues that are organized to carry out a specific function of the body. (Brain, Heart, etc.)
  • 14. organ
A) any living plant animal or fungus that maintains various vital processes necessary for life.
B) similar cells acting to perform a specific function.
C) a structure containing different tissues that are organized to carry out a specific function of the body. (Brain, Heart, etc.)
  • 15. microscopic
A) a chemical process by which plants trap light energy to convert carbon dioxide and water into carbohydrates(sugars)
B) any material that can be used to satisfy a need.
C) relating to an object too small to be visible without the use of a microscope.
  • 16. life cycle
A) all populations of organisms belonging to different species and sharing the same geographical area.
B) the entire sequence of events in an organism's growth and development.
C) set of objects, organisms, or different parts acting to form a whole.
  • 17. herbivore
A) an organism that preys on and consumes animals. Usually an animal.
B) an organism that makes it's own food from the environment. Usually a green plant.
C) an animal that feeds on plants.
  • 18. habitat
A) a place in an ecosystem where an organism normally lives.
B) all populations of organisms belonging to different species and sharing the same geographical area.
C) set of objects, organisms, or different parts acting to form a whole.
  • 19. fossil
A) an organism caught or hunted for food by another organism.
B) a whole or part of a plant or animal that has been preserved in sedimentary rock.
C) rock formed from layers of sediment that overlay and squeeze together.
  • 20. food web
A) the interconnected feeding relationships in a food chain found in a particular place and time.
B) a resource that is replace or restored as it is used, by natural process in a reasonable amount of time.
C) a pyramidal diagram that compares the amount of energy available at each position or level in the feeding order.
  • 21. food chain
A) any material that can be used to satisfy a need.
B) a pyramidal diagram that compares the amount of energy available at each position or level in the feeding order.
C) transfer of energy through various stages as a result of feeding patterns of a series of organisms.
  • 22. experiment
A) a procedure that is carried out in order to observe a response caused by a stimulus.
B) a procedure that is carried out and repeated under controlled conditions in order to discover, demonstrate, or test a hypothesis.
C) a plan of inquiry that uses science process skills as a tool to gather, organize, analyze, and communicate information.
  • 23. environment
A) the sum of conditions effecting an organism, including all living and non-living things in the area.
B) path that water takes as it is being cycled through the environment.
C) all populations of organisms belonging to different species and sharing the same geographical area.
  • 24. energy pyramid
A) any alteration of the natural environment producing a condition harmful to living organisms.
B) the entire sequence of events in an organism's growth and development.
C) a pyramidal diagram that compares the amount of energy available at each position or level in the feeding order.
  • 25. ecosystem
A) a group of organisms of the same species living in a specific geographical area.
B) set of objects, organisms, or different parts acting to form a whole.
C) an integrated unit of biological community, it's physical environment, and interactions.
  • 26. decomposer
A) an organism that makes it's own food from the environment. Usually a green plant.
B) any organism that feeds or obtains nutrients by breaking down organic matter from dead organisms.
C) an organism caught or hunted for food by another organism.
  • 27. consumer
A) an organism that makes it's own food from the environment. Usually a green plant.
B) an organism that feeds on another organism for food.
C) any organism that makes it's own food from sunlight.
  • 28. conservation
A) any material that can be used to satisfy a need.
B) controlled use and or maintenence of natural resources. Various efforts to preserve or protect natural resources.
C) any alteration of the natural environment producing a condition harmful to living organisms.
  • 29. community
A) any living plant animal or fungus that maintains various vital processes necessary for life.
B) all populations of organisms belonging to different species and sharing the same geographical area.
C) a group of organisms of the same species living in a specific geographical area.
  • 30. carnivore
A) an organism caught or hunted for food by another organism.
B) an animal or plant that consumes or obtains nutrients from animals.
C) an organism that makes it's own food from the environment. Usually a green plant.
  • 31. adaptation
A) the entire sequence of events in an organism's growth and development.
B) a characteristic of an organism that increases it's chance of survival in its environment.
C) the existence of a wide range of different species in a given area or specific period of time.
  • 32. abiotic
A) an organism that makes it's own food from the environment. Usually a green plant.
B) an environmental factor not associated with the activities of living organisms
C) the entire sequence of events in an organism's growth and development.
  • 33. allele
A) an animal that feeds on plants.
B) similar cells acting to perform a specific function.
C) any of two or more alternate forms of a gene that an organism may have for a particular trait.
  • 34. asexual reproduction
A) the process of nuclear division in cells during which the number of chromosomes is reduced by half.
B) a form of reproduction in which new individuals are formed without the involvement of gametes.
C) reproduction involving the union of gametes producing an offspring with traits from both parents.
  • 35. biodiversity
A) set of objects, organisms, or different parts acting to form a whole.
B) the existence of a wide range of different species in a given area or specific period of time.
C) the entire sequence of events in an organism's growth and development.
  • 36. biotic
A) any material that can be used to satisfy a need.
B) the existence of a wide range of different species in a given area or specific period of time.
C) factors in an environment relating to, caused by or produced by living organisms
  • 37. calorie
A) unit of energy; the amount of heat needed to raise one gram of water one degree Celsius at standard atmospheric pressure.
B) a chemical process by which plants trap light energy to convert carbon dioxide and water into carbohydrates(sugars)
C) any alteration of the natural environment producing a condition harmful to living organisms.
  • 38. dependent variable
A) the factor that is changed in an experiment in order to study changes in the dependent variable.
B) a graphical checkboard used to determine results from a particular genetic cross.
C) a factor being measured or observed in an experiment.
  • 39. dominance
A) an allele for a trait that will be masked unless the organism is homozygous for this trait.
B) a process of nuclear division in eukaryotic cells during which the nucleus of the cell divides into two nuclei, each with the same number of chromosomes.
C) tendency of certain (dominant) alleles to mask the expression of their corresponding (recessive) alleles.
  • 40. ecosystem
A) path that water takes as it is being cycled through the environment.
B) an ecological community, together with it's environment, functioning as a unit.
C) a group of organisms of the same species living in a specific geographical area.
  • 41. Punnett square
A) a process of nuclear division in eukaryotic cells during which the nucleus of the cell divides into two nuclei, each with the same number of chromosomes.
B) a graphical checkboard used to determine results from a particular genetic cross.
C) an allele for a trait that will be masked unless the organism is homozygous for this trait.
  • 42. recessive
A) an allele for a trait that will be masked unless the organism is homozygous for this trait.
B) tendency of certain (dominant) alleles to mask the expression of their corresponding (recessive) alleles.
C) a cell structure that contains the cell's genetic material.
  • 43. sexual reproduction
A) a process of nuclear division in eukaryotic cells during which the nucleus of the cell divides into two nuclei, each with the same number of chromosomes.
B) a chemical process by which plants trap light energy to convert carbon dioxide and water into carbohydrates(sugars)
C) reproduction involving the union of gametes producing an offspring with traits from both parents.
  • 44. tropism
A) path that water takes as it is being cycled through the environment.
B) the motion of an organism or part of an organism toward or away from an external stimulus.
C) a chemical process by which plants trap light energy to convert carbon dioxide and water into carbohydrates(sugars)
  • 45. variable
A) an event, condition, or factor that can be changed or controlled in order to study or test a hypothesis in a scientific experiment.
B) a procedure that is carried out in order to observe a response caused by a stimulus.
C) a plan of inquiry that uses science process skills as a tool to gather, organize, analyze, and communicate information.
  • 46. gene
A) the amount of matter an object contains.
B) a specific part of a chromosome or sequence of DNA that determines a particular feature or characteristic in an organism.
C) a cell structure that contains the cell's genetic material.
  • 47. heterozygous
A) cell or organism that has identical rather than different alleles for a particular trait.
B) a cell or organism that has two different alleles for a particular trait.
C) a process of nuclear division in eukaryotic cells during which the nucleus of the cell divides into two nuclei, each with the same number of chromosomes.
  • 48. homozygous
A) cell or organism that has identical rather than different alleles for a particular trait.
B) the process of nuclear division in cells during which the number of chromosomes is reduced by half.
C) a cell or organism that has two different alleles for a particular trait.
  • 49. mass
A) any alteration of the natural environment producing a condition harmful to living organisms.
B) the amount of matter an object contains.
C) a cell structure that contains the cell's genetic material.
  • 50. meiosis
A) a process of nuclear division in eukaryotic cells during which the nucleus of the cell divides into two nuclei, each with the same number of chromosomes.
B) a chemical process by which plants trap light energy to convert carbon dioxide and water into carbohydrates(sugars)
C) the process of nuclear division in cells during which the number of chromosomes is reduced by half.
  • 51. mitosis
A) the process of nuclear division in cells during which the number of chromosomes is reduced by half.
B) a process of nuclear division in eukaryotic cells during which the nucleus of the cell divides into two nuclei, each with the same number of chromosomes.
C) the entire sequence of events in an organism's growth and development.
  • 52. nucleus
A) a cell structure that contains the cell's genetic material.
B) the amount of matter an object contains.
C) similar cells acting to perform a specific function.
  • 53. independent variable
A) the factor that is changed in an experiment in order to study changes in the dependent variable.
B) a procedure that is carried out in order to observe a response caused by a stimulus.
C) a factor being measured or observed in an experiment.
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