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. Connecting trunk of the pistil






2. An intimate relationship or association between members of two or more species






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






4. The largest population that can be maintained for an indefinite period by a particular environment as long as there are no changes in it






5. Implanted in the uterus & probably stimulates inflammatory response and prevents implantation






6. Lays down an RNA primer that allows the DNA polymerase to attach to the DNA strand






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






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






9. Up or down






10. 'Water fearing' & repels water






11. The process of community development over time & which involves species in one stage being replaced by other species






12. A combination of natural selection and genetics






13. Local variation in climate produced by differences in elecation






14. Stalk of the stamen






15. A mutation in which the entire reading chain is shifted & changed everything after an addition or delection






16. The information from the mRNA being used to form a protein






17. Occurs when the environment is worsening from too many people






18. A single ringed nitrogenous base






19. The change in species composition produced at ecotones






20. Each gene is present in two copies & when gametes are formed each gamete gets only one of the two factors






21. Found out that the hormone was being produced in the tip






22. Unfertilized egg develops into a reproducing haploid animal that is capable of reproducing using a different process to make gametes






23. The assignments of codons for amino acids and for start and stop signals






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






25. Participates in the process in which amino acids are linked to form polypeptides






26. A structure that separates the duplicated chromosomes during anaphase






27. Associates strongly with polar water molecules






28. Causes rapid cell division






29. The time when no cell division in occurs






30. Plant growth response that is dependent on the direction of stimulus






31. The arrival of the chromosomes at the poles and cytokinesis






32. Covalently linking monomers






33. The average per capita death rate






34. A graph that illustrates the total biomass at each successive trophic level






35. Camouflage






36. Reproductive isolation due to different mating times






37. The proportion of a particular phenotype in the population






38. On the side where the 5' carbon is

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39. Affects the ripening of fruit






40. The information from the mRNA being used to form a protein






41. An actively cooperating group of individuals belonging to the same species and often closely related






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






43. Energy level






44. A type of natural selection for successful mating






45. New genetically identical 'self' grows on the side and then breaks off






46. The time when no cell division in occurs






47. Stimulates the growth of sex organs at puberty and the development of secondary sex characteristics & induces maturation & stimulates monthly preparation of endometrium for pregnancy & makes cervical mucus thinner and more alkaline






48. Makes up the cytoskeleton






49. Produces semen (3)






50. Any environmental source that tends to restrict the ecological niche of a species because it is scare or unfavorable