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






2. Chemical messenger






3. The potential ecological niche of a species






4. Reads bases and puts the correct base into it & can only lay down in one direction






5. When the animal must do something to gain a reward or to avoid punishment






6. 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






7. Any process that leads to new gene combinations






8. The movement of alleles






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






10. 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






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






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






13. One dominant and one recessive






14. The passage of energy in a one-way direction through an ecosystem






15. Release of the egg






16. Abstinence during ovulation period






17. Affects the ripening of fruit






18. Plastic cap over the cervix






19. Plant growth response that is not dependent on the direction of the stimulus






20. Local variation in climate produced by differences in elecation






21. Kills sperm






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






23. The time when no cell division in occurs






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






25. Opening into the uterus






26. The proportion of a particular phenotype in the population






27. When a population is regulated by its environment's limits & grows until it levels out just below the carrying capacity and then oscillates






28. 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






29. Both dominant or recessive






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






31. A scientific discipline with ties to evology that focuses on how humans interact with the environment






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






33. Morning after pill






34. Unzips the DNA strand






35. Has cones






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






37. Moving into unoccupied niches & causes speciation






38. The stuff in between the granum






39. When the chromosomes align at the cells middle






40. When there is equilibrium between to areas & but molecules are still moving






41. Contains enzymes that help with fertilization






42. The graph of the number of surviving individuals against age (birth to maximum age)






43. A macromolecule composed of amino acids






44. A gene carried on the Y chromosome






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






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






47. An arm of an amoeba






48. When the chromatin fibers condense into chromosomes






49. Stimulates the development of seminiferous tubules and spermatogenesis in males & stimulates the development of follicles and the secretion of estrogen in females






50. Provides genetic variation through recombination