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. Capillary bed that is adjacent to the capillaries of the uterine lining & exchanges everything except for blood






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






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






4. A molecular unit that consists of a five carbon sugar & one or more phosphate groups & and a nitrogenous base






5. Going from areas of high concentration to low concentration & going with the concentration gradient






6. An abrupt decline from high to low population density






7. Moving a solid molecule into a cell






8. Changes within a species that occur in relatively short periods of time that are the result of changes in the genetic composition of populations






9. Completes the preparation of the endometrium for pregnancy






10. Reproductive isolation due to different mating times






11. Megaspore after mitosis






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






13. When a cell controls how fast it wants to take things in






14. The start of a gene






15. The buildup of a toxin in an organism's body






16. 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






17. The change in allelic frequencies of two or more populations over time & the interdependent evolution of two or more interacting species






18. When a population's allele and genotype frequencies don't change from generation to generation






19. A tool of ecological management in which the undergrowth and plant litter are deliberately burned under controlled condition before they accumulate to dangerous levels






20. All the alleles present in the population






21. 'packages' cell products






22. A compound in which carbon atoms are covalently bonded to one another to form the backbone of the molecule






23. What something does and how it does it






24. A parasite that lives inside the host






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






26. A type of natural selection for successful mating






27. Sticky part of the pistil that pollen sticks to






28. Both dominant or recessive






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






30. Lays eggs






31. When a cell or nucleus has only a single set of chromosomes






32. A disaccharide made from glucose and galactose & milk sugar






33. A type of social learning based on early experience which allows offspring to bond to their mother






34. Making more DNA






35. The proportion of a particular genotype in the population






36. Exactly the same as mitosis






37. A simple signal that triggers a specific behavioral response






38. The study of behavior in natural environments from an evolutionary perspective






39. Male gamete released into the female






40. The proportion of a particular genotype in the population






41. Stimulates the anterior pituitary to make FSH and LH






42. Holds the ovaries to the body of the uterus






43. Provides food for the developing embryo in a land egg






44. When most are average and extremes are better






45. Immature sperm cell






46. The proportion of a particular phenotype in the population






47. Produces semen (2)






48. Holds the ovules






49. Has cones






50. Reproductive isolation due to molecular and chemical differences