Across
- 3. the process by which plants and animals give rise to offspring
- 6. the energy of motion
- 12. an organic molecule that provides energy, made of glucose
- 13. the process by which cells turn oxygen and glucose into water, carbon dioxide, and energy
- 14. a type of cell in mammals that sends electrical signals
- 17. a band or bundle of fibrous tissue in a human or animal body that has the ability to contract, producing movement
- 19. the variable in an experiment that is changed by the experimenter
- 20. The movement of blood throughout the human body
- 22. the quality that distinguishes a vital and functional being from a dead body
- 24. an organic molecule that is made of amino acids
- 25. acid organic molecules that make up proteins
- 28. the process of exchanging oxygen and carbon dioxide.
- 31. an internal or external framework of bone, cartilage, or other rigid material supporting or containing the body of an animal or plant
- 32. functional units of the cell
- 33. a substance or ingredient that promotes growth, provides energy, and maintains life
- 35. the study of life
- 36. any nutritious substance that people or animals eat or drink or that plants absorb in order to gain energy
- 39. a simple carbohydrate
- 40. a complex carbohydrate
- 43. The process of breaking down food into smaller molecules both physically and chemically.
- 44. the sum of the processes by which an animal or plant takes in and utilizes food substances
Down
- 1. an amount of food having an energy-producing value
- 2. all the chemical reactions that take place in an organism
- 4. matter made of multiple elements
- 5. microscopic, prokaryotic, single celled organisms
- 7. a type of cell that contains a nucleus and organelles
- 8. to react in response
- 9. the variable in an experiment that is measured to analyze the effect of the independent variable
- 10. the energy of molecules in motion
- 11. multicellular organism that create their own food using photosynthesis
- 15. an operation or procedure carried out under controlled conditions in order to discover an unknown effect
- 16. chemical change that occurs when two or more substances combine to form a new substance
- 18. an organic molecule that provides energy, made of triglycerides
- 21. all variables in an experiment that are kept constant
- 23. a type of cell that does not contain a nucleus
- 26. an optical instrument consisting of a lens or combination of lenses for making enlarged images of minute objects
- 27. the ability of an object to do work
- 29. the process by which plant cells use sunlight to change carbon dioxide and water into oxygen and glucose
- 30. a substance (such as litmus) used to show visually (as by change of color) the condition of a solution with respect to the presence of a particular material
- 34. to soften, decompose, or break down by heat and moisture or chemical action
- 37. an individual able to carry on the activities of life
- 38. instrument usually in watch form that records the distance a person covers on foot
- 41. multicellular organisms that consume organic material for energy
- 42. to increase in size by assembling structures in a living organism