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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. An environmental factor whose ways of affecting a population are altered when there is a change in population density






2. Stimulates the interstitial cells to secrete testosterone in males & stimulates ovulation and the development of the corpus luteum in females






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






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






5. A simple signal that triggers a specific behavioral response






6. The study of how living organisms and the physical environment interact in an immense and complcated web of relationships & the broadest field of biology






7. Immature sperm cell






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






9. Plants & make their own food & lowest trophic level






10. A piece of DNA that codes for a specific trait






11. A single strand of RNA that folds back on itself to form a specific shape






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






13. Noncoding material






14. Cells are the basic unit of living organisms and all cells come from pre-existing cells






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






16. Coccus prokaryotic cells






17. The global movement of nitrogen between the abiotic environment and organisms






18. Speciation that occurs when a new species evolves within the same geographic region as the parental species






19. The study of the past and present geographic distribution of organisms






20. When two parts of sister chromatids exchange corresponding parts






21. Covalently linking monomers






22. Aka boreal forest & big evergreen forests & cold most of the year






23. Connects the baby to the placenta






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






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






26. Towards the stimulus






27. The offspring of two genetically dissimilar parents






28. Any process that leads to new gene combinations






29. Produces proteins






30. The ability to produce viable offspring






31. The potential ecological niche of a species






32. The ability to adapt past experiences that may involve different stimuli to solve a new problem






33. Occurs when each individual in a population consumes too large a share of resources






34. Contain identical & double stranded DNA sequences (><)






35. A compound present on the outer surface of cells that aren't bacteria






36. The net energy available for biomass production by consumer organisms






37. Exactly the same as mitosis






38. Provides structure for the cell






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






40. When a cell or nucleus contains two sets of chromosomes






41. A double ringed nitrogenous base






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






43. Aka aggregated distribution & occurs when resources in an area are clumbed & when there is limited seed dispersal or asexual reproduction & or when families/colonies all live together & good because the organisms can protect one another






44. Completes the preparation of the endometrium for pregnancy






45. 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






46. A phospholipid bilayer in which the layers are oriented towards each other and there are proteins on the outside of and in between the layers






47. Inhibits ovulation & affects the endometrium and cervical mucus to prevent implantation & regulates the menstrual cycle






48. The proportion of a particular phenotype in the population






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






50. Connects the ovary to the uterus & where fertilization usually takes place






Can you answer 50 questions in 15 minutes?



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