Test your basic knowledge |

Honors Freshman Science

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Competition among population of different species






2. A conservation approach that emphasizes restoring and maintaining the quality of an entire ecoystem rather than the conservation of individual species






3. Energy level






4. Composes the genes and contains the instructions for making all the proteins & as well as the RNA & an organism needs






5. A gateway in the cell membrane that lets molecules through






6. The evolutionary diversification of many related species from one or more ancestral species in a relatively short period






7. The strand of DNA that is synthesized smoothly and continuously






8. A behavior that has been modified in response to environmental experience






9. Produces follicle stimulating hormone (FSH) and luteinizing hormone (LH)






10. The production of gametes






11. The amount of energy that remains in plant tissues after cellular respiration & the amount of biomass found in excess of that broken down by a plant's cellular respiration for normal daily activities






12. When a molecule attaches to the channel and the carrier 'somersaults' to the other side and releases the molecule & then returns to its original side






13. Going through protein channels with the concentration gradient






14. Plant growth response that is not dependent on the direction of the stimulus






15. A fatty acid that contains the maximum possible number of hydrogens






16. A group of atoms that determines the types of chemical reactions and associations in which the compound participates






17. Rod shaped prokaryotic cells






18. A combination of natural selection and genetics






19. 'Water fearing' & repels water






20. Cold & dry & permafrost & treeless & short growing season






21. The cycle that goes from oen organism to another in food chains and from living organisms to the abiotic environment and back






22. When cells touch each other and stop dividing






23. The cells that don't become eggs in oogenesis






24. Active at nigh






25. Defense of a territory






26. An environmental factor whose ways of affecting a population are altered when there is a change in population density






27. Compounds with the same molecular formulas but different structures






28. When water moves into a cell and keeps going in until the membrane bursts






29. Provides structure for the cell






30. LH-like hormone produced by the placenta that maintains the corpus luteum






31. The proportion of a particular genotype in the population






32. Destoy the ozone layer






33. Any environmental factor that affects the size of a population but isn't influences by changes in population density & usually abiotic factors






34. Competition within a given population






35. Things that eat the producers & second lowest trophic level






36. Associates strongly with polar water molecules






37. The ability to adapt past experiences that may involve different stimuli to solve a new problem






38. Lateral






39. Emphasizes species individuality & shows how each species has its own abiotic living requirements






40. The enzyme that controls the cell cycle & is destroyed during mitosis






41. Abstinence during ovulation period






42. The study of heredity






43. A piece of DNA that codes for a specific trait






44. Triggers mitosis when it binds with cyclins at high enough concentrations & survives mitosis






45. An organic compound consisting of only carbon and hydrogen






46. The stuff in between the granum






47. A scientific discipline with ties to evology that focuses on how humans interact with the environment






48. Where cells are actively dividing






49. The graph of the number of surviving individuals against age (birth to maximum age)






50. The number of individuals of a species per unit of area or volume at a given time