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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. The enzyme that takes out all of the introns & leaving only the exons






2. 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






3. Focuses on the evolution of social behavior through natural selection






4. Active at nigh






5. Eggs and sperm combine






6. Reproductive isolation due to different mating signals






7. A transitional zone where two or more communities meets & contains all or most of the ecological niches of the adjacent communities as well as some that are unique to the ecotone






8. Associates strongly with polar water molecules






9. Figured out that the hormone that made plants bend was on the opposite side from the light






10. Coccus prokaryotic cells






11. Little 'hairs' around the membrane used for movement






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






13. Decompose all trophic levels






14. A single ringed nitrogenous base






15. Different traits are passed on separately and independently from one another






16. A form of natural selection that increases inclusive fitness through the breeding success of close relatives






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






18. 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






19. Connecting trunk of the pistil






20. A gene carried on the Y chromosome






21. The mating of genetically similar individuals that are more closely related than if they had been chosen at random from the entire population






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






23. Takes less energy and is more efficient than sexual reproduction






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






25. When all the water is sucked out of a cell






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






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






28. One extreme is bad and the other is good






29. Things that eat the primary consumers & third lowest trophic level






30. A type of learning in which an animal learns to ignore a repeated & irrelevant stimulus






31. Thin inner membrane in a land egg






32. The average per capita death rate






33. Competition among population of different species






34. Eggs laid and then fertilized






35. A channel that takes things from one side of the phospholipid bilayer to the other by having a protein attach to the channel which changes its shape and moves the stuff to the other side






36. Going through protein channels with the concentration gradient






37. Original cell that forms egg






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






39. When an original part of the double helix is put together with a new strand & and the same is done with the other part of the original






40. High to low concentration






41. The mating of genetically similar individuals that are more closely related than if they had been chosen at random from the entire population






42. Animal starch & used for energy storage






43. The clearance of large expanses of forest for agriculture or other uses






44. Response of any plant to the amount of light it receives






45. What something does and how it does it






46. A sequence of three bases that hydrogen bond with the mRNA codon by complementary base pairing






47. The possession of two or more set of chromosomes






48. Initial fertilized cell






49. Megasporocyte after meiosis






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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