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. The process by which heritable traits make it more likely that an organism will have greater reproductive success






2. The end of a gene






3. A lipid that consists of a clycerol molecule attached at one end to two fatty acids & and at the other end to a phosphate group linked to an organic compound






4. When the sister chomatids separate and the chromosomes move to opposite poles






5. Exactly the same as mitosis






6. Causes rapid cell division






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






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






9. Interaction among two or more individuals that attempt to use the same essential resource






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






11. The genetic drift that results when a small number of individuals from a large population found a new colony






12. Aka chaparral & mixed scrub community with lower rainfall than in a deciduous forest






13. A structure that separates the duplicated chromosomes during anaphase






14. A symbiotic relationship in which one species benefits and the other is unharmed






15. Stimulates the anterior pituitary to make FSH and LH






16. Stable relationships that ensure cooperative behavior in mating and the rearing of the young






17. The accelerating population growth rate that occurs when optimal conditions allow a constant per capita growth rate






18. AAAA...






19. When the heterozygote has a phenotype intermediate between those of its two parents






20. The layer that surrounds the cell and holds everything in






21. Male gamete released into the female






22. A structure that separates the duplicated chromosomes during anaphase






23. The interaction of two or more animals & usually of the same species






24. Going through protein channels with the concentration gradient






25. 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






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






27. Compounds with the same molecular formulas but different structures






28. Eggs and sperm combine






29. The typical form of carbohydrate used for energy storage in plants






30. Compounds with the same molecular formulas but different structures






31. Where DNA is held & the control center of the cell






32. More cells






33. The layer that surrounds the cell and holds everything in






34. The nuclear division that produces two nuclei containing chronosomes identical to those in the parental nucleus






35. The end of a lineage






36. Plastic cover of the penis






37. The measure of the relative importance of each species within a community & based on its abundance & productivity & or size






38. A group consisting of members of the same species that live together in a prescribed area at the same time






39. All the alleles present in the population






40. Aka temperate deciduous forest & broadleaf trees






41. Reproductive isolation due to molecular and chemical differences






42. States that species richness is greatest at moderate levels of disturbance & so all the different species are at different stages in succession






43. The movement of alleles






44. Has cones






45. The global movement of phosphorus between the abiotic environment and organisms






46. Opening into the uterus






47. Towards the stimulus






48. Morning after pill






49. Moving a solid molecule into a cell






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