Across
- 3. any difference in traits between individual organisms
- 6. a climate pattern where water near the equator gets hotter than usual and affects the weather around the world
- 8. living things, such as plants, animals, and bacteria
- 13. a specific form of a gene that provides instructions for making a particular protein molecule
- 16. the chemical reaction between oxygen and glucose that releases energy into cells
- 17. the imaginary line that divides Earth into northern and southern hemispheres (halves)
- 18. molecules that are the building blocks of proteins
- 19. the part of a cell where genes are found
- 21. the body system that transports molecules to and from all cells of the body
- 22. the relative size of living things
- 24. ocean water flowing in a continuous path
- 28. medicines that kill microorganisms, especially bacteria
- 29. a measure of how hot or cold something is
- 30. a specific characteristic of an individual organism
- 32. a long piece of DNA that contains many genes
- 34. the distance of a place north or south of Earth’s equator
- 35. winds that move in one direction and are strong enough to push ocean currents
- 37. having gene versions that are different
- 38. an instruction for making a protein molecule
- 39. a category of large molecules that perform important functions inside living things
Down
- 1. a random change to a gene that sometimes results in a new trait
- 2. a molecule made of carbon and oxygen atoms that is exhaled during respiration
- 4. an organism that is too small to be seen with the naked eye
- 5. a molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms
- 7. tiny organisms that are made of a single cell
- 9. a giant pattern of moving water that spans whole oceans and moves water from place to place in a circle
- 10. general weather patterns over a long period of time
- 11. the body's use of molecules for energy and growth
- 12. a type of molecule that genes and chromosomes are made of
- 14. the distance of a place east or west of Earth’s prime meridian
- 15. the body system that takes in oxygen and releases carbon dioxide
- 20. a process in which atoms rearrange to form new substances
- 23. all of the microorganisms that live in a particular environment
- 25. a type of energy storage molecule made of many glucose molecules connected together
- 26. the parts of the cell that build protein molecules based on instructions from genes
- 27. the tiny structures that make up all living things
- 31. a characteristic that all members of a species have
- 33. the ability to make things move or change
- 36. the body system that takes in food and breaks it down
- 37. having gene versions that are the same