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






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






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






4. Any event in time that disrupts community or population structure






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






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






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






8. An arm of an amoeba






9. Initial fertilized cell






10. An evolutionary modification that improves the chances of survival and reproductive success in a given environment






11. Contains two monosaccharide rings joined by a ether link






12. A long whip-like tail used for movement






13. Lays eggs






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






15. Halfway between saturated and unsaturated






16. The stuff in between the granum






17. Cold & dry & permafrost & treeless & short growing season






18. 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






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






20. Zygote after it has undergone mitosis and grown






21. 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






22. The divergence of two similar species living in the same geographic area






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






24. Cutting of the oviduct






25. Produces follicle stimulating hormone (FSH) and luteinizing hormone (LH)






26. High to low concentration






27. Fluid filled sac where the primary oocyte divides to form the secondary oocyte and the polar body






28. Male gamete released into the female






29. The proportion of a particular phenotype in the population






30. 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






31. Has its own life support for the embryo






32. Partner chromosomes similar in size & shape & and the position of their centromeres (XX)






33. The site of photosynthesis






34. The enzyme that makes RNA and unzips the DNA for transcription






35. Oscillation between two things that affect the population & keeps the population in check






36. Produces proteins






37. Chromosomes other than sex chromosomes






38. Lateral






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






40. Halfway between saturated and unsaturated






41. A mating system in which a male mates with only one female during a breeding season






42. The proportion of a specific allele in a particular population






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






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






45. A covalent link formed when the equivalent of a water molecule is removed as one of the glycerol's hydroxyl groups reacts with the carboxul group of a fatty acid






46. The possession of two or more set of chromosomes






47. A form of active transport that uses energy to pump ions from the outside to the inside of a cell






48. Camouflage






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






50. Growth response to gravity & positive in stem & negative in roots