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. Regulates the ecosystem function by nutrient cycling and by availability of other resources






2. When individuals in a population are spaced throughout an area in a way that is unrelated to where other are & the least common type of dispersion






3. A large & relatively distinct terrestrial region that has similar climate & soil & plants & and animals regardless of where it occurs






4. Aka scramble competition & all the members of the population have a generally equal amount of the resources






5. 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






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






7. The sequence of nucleotides in one chain dictates the complementary sequence of nucleotides in the other






8. A form of a gene






9. A symbiotic relationship in which the parasite benefits which the host is harmed






10. Occurs when there is the same concentration in different areas






11. Produces proteins






12. How the molecule folds on itself due to the functional group interactions






13. The proportion of a particular phenotype in the population






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






15. Produces semen (1)






16. Species interacting in a positive way & Which modifies and enhances the local environment for other species






17. Plastic cover of the penis






18. Changes in the shape of a protein and the accompanying loss of its biological activity






19. Speciation that occurs when one population becomes geographically separated from the rest of the species and subsequently evolves by natural selection/genetic drift






20. Chromosomes other than sex chromosomes






21. The constricted region in a chromatid






22. A section of three nitrogenous bases






23. Produce estrogen and progesterone






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






25. Contains enzymes that help with fertilization






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






27. Have trains that maximize the chance of surviving in an environment where the number of individuals is the carrying capacity & have few offspring & are larger & have long life spans & develop slowly & reproduce late & have low reproductive rates & pr






28. A type of natural selection for successful mating






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






30. A graph that indicates the energy content of the biomass of each trophic level






31. Gases act like a blanket and hold heat in the atmosphere






32. CAT






33. Promotes cell elongation & apical dominance






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






35. When individuals are evenly spaced & occurs because of territoriality or competition for resources or space






36. Contains enzymes that help with fertilization






37. 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






38. Warm & lots of rain & highest level of diversity and production






39. Transmits hereditary information and determines what proteins a cell manufactures






40. Going up and down around a set point






41. The major carrier of genetic information in eukaryotes & found in the cell nucleus






42. A fatty acid that doesn't contain the maximum possible number of hydrogens






43. Spontaneous generation & life may arise from nonliving matter (incorrect idea)






44. A link formed when three or more amino acids combine






45. When individuals in a population are spaced throughout an area in a way that is unrelated to where other are & the least common type of dispersion






46. Collects waste products in a land egg






47. Sex cell






48. Where seminiferous tubules are found & where testosterone is made






49. Competition among population of different species






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