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. Species that show repetitive reproductive cycles






2. A nucleic acid polymer consisting of nucleotide subunits that can associate by complementary base paining with the single-strand DNA template






3. The young have a high probability of surviving & which the old have a much lower probability






4. Completes the preparation of the endometrium for pregnancy






5. A vacuole filled with digestive enzymes






6. Cutting of vas deferens






7. A combination of glycolipids and glycoproteins which is found on the outside of a cell and allows for cell-cell recognition






8. The offspring of two genetically dissimilar parents






9. A plant structural compound






10. A double ringed nitrogenous base






11. Eggs laid and then fertilized






12. The beta pleated sheet or alpha helix






13. All the alleles present in the population






14. Moving molecules into a cell






15. Can't make its own food






16. Destoy the ozone layer






17. Initial fertilized cell






18. The average per capita birth rate






19. A group of populations of different species that live and interact in the same place at the same time






20. The change in species composition over time in a habitat that was not previously inhabited by organisms (no soil)






21. Daily & 24 hour cycles of activity






22. Stalk of the stamen






23. When individuals of the same sex actively compete for mates






24. The proportion of a specific allele in a particular population






25. Contains enzymes that help with fertilization






26. Megaspore after mitosis






27. Breaking apart water






28. The divergence of two similar species living in the same geographic area






29. A protein that accelerates the thousands of different chemical reactions that take place in an organism






30. The time inbetween meiosis 1 and 2






31. A form of natural selection that increases inclusive fitness through the breeding success of close relatives






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






33. Turning energy from one form to another






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






35. Behavior that is common to a population & learned from other members of the group & and transmitted from one generation to another






36. Fluid filled chamber that surrounds and protects the developing embryo in a land egg






37. The global movement of water between the abiotic environment and organisms






38. Cells don't produce new cytoplasm to make the cell bigger & they produce an excess of protons which soften the cell walls so that the water vacuole fills up and makes the cell bigger






39. An organic compound with 3-7 carbons with a hydroxyl (OH) group bonded to each but one & which is double bonded to an oxygen






40. Inhibits ovulation & lasts a long time






41. Lays eggs






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






43. Any process that leads to new gene combinations






44. Choosing certain trains and breeding only individuals that axhibited the desired traits






45. Associates strongly with polar water molecules






46. When natural selection favors individuals of each species that avoid or reduce among coexisting species as a result of each species' niche differing from the others in one or more ways & reducing competition






47. Coccus prokaryotic cells






48. When all the water is sucked out of a cell






49. All of the contents of the cell inside the membrane






50. The study of changes in a population (how and why the population numbers increase and decrease)