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






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






3. Unfertilized egg develops into a reproducing haploid animal that is capable of reproducing using a different process to make gametes






4. More cells






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






6. Exactly the same as mitosis






7. Produces gonatotropin releasing hormone (GnRH)






8. The science that deals with human population statistics






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






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






11. One species excludes another from its niche as a result of interspecific competition






12. 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






13. Cells don't produce new cytoplasm to make the cell bigger & they produce an excess of protons which soften the cell walls so that the water vacuole fills up and makes the cell bigger






14. 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






15. Where sperm cells are formed by spermatogenesis






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






17. Collects waste products in a land egg






18. Immature sperm cell






19. A compound on the surface of animal cells that allow cells to recognize and interact with one another






20. 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






21. Used for reproductive purposes and peeing






22. Each gene is present in two copies & when gametes are formed each gamete gets only one of the two factors






23. Initial shoot that comes out of the ground






24. Aka contest competition & certain dominant individuals get a good supply of the limited resources while the other less dominant organisms in the population don't






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






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






27. Energy from food passing from one organism to the next in a sequence






28. The buildup of predator and prey strategies






29. Cut down trees and then burn them & pollutes the air & 'kills' the soil






30. Used for long term energy storage & cell membranes & padding and insulation & and steroids & soluble in nonpolar solvents and relatively insoluble in water






31. What something does and how it does it






32. Zygote after it has undergone mitosis and grown






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






34. Produces oxytocin






35. Produces semen (2)






36. A protein that accelerates the thousands of different chemical reactions that take place in an organism






37. On the side where the 3' carbon is


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






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






40. The end of a lineage






41. When a cell controls how fast it wants to take things in






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






43. Where protein synthesis takes place






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






45. The proportion of a particular genotype in the population






46. 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






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






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






49. Microsporocyte after meiosis






50. A protein channel that lets things in and out of the cell