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. LH-like hormone produced by the placenta that maintains the corpus luteum






2. The structure in the mitochondria






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






4. Cutting of the oviduct






5. Checks for errors and takes of RNA primer






6. A fatty acid that doesn't contain the maximum possible number of hydrogens






7. Towards the stimulus






8. Going up and down around a set point






9. A symbiotic relationship in which one species benefits and the other is unharmed






10. 'Water fearing' & repels water






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






12. Both extremes are better than average






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






14. When the chromosomes align at the cells middle






15. A double ringed nitrogenous base






16. When one individual behaves in a way that seem to benefit others rather than itself






17. The movement of alleles






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






19. The change in species composition that takes place after some disturbance removes the existing vegetation & but the soil remains






20. A species is protected because of its similar appearance to an undesirable species






21. When individuals of the same sex actively compete for mates






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






23. Warm & lots of rain & highest level of diversity and production






24. Rod shaped prokaryotic cells






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






26. A gene carried on the Y chromosome






27. Changes in the shape of a protein and the accompanying loss of its biological activity






28. Male part of the flower






29. Moving molecules into a cell






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






31. A type of natural selection for successful mating






32. Reproductive isolation due to different habitats in the same area






33. Stalk of the stamen






34. A lipid that consists of carbon atoms arranged in four attached rings & three of which are hexagonal and the other is pentagonal






35. Produces eggs






36. The average per capita death rate






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






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






39. Genes that tend to be inherited together






40. An abrupt decline from high to low population density






41. The end of a lineage






42. The arrival of the chromosomes at the poles and cytokinesis






43. The nuclear division that produces two nuclei containing chronosomes identical to those in the parental nucleus






44. A common type of gene interaction in which the presence of certain alleles can prevent or mask the expression of a different allele and express their own phenotype instead






45. Forms the initial seed leaves (not actual leaves) & a side of the seed






46. Behavior that is common to a population & learned from other members of the group & and transmitted from one generation to another






47. A process carried out to ensure that the male is actually male and a member of the same species






48. Secretes hormones that keep uterine lining thick in the event of fertilization & what the follicle turns into after fertilization






49. All life forms must come from pre-existing life (correct idea)






50. When strands run in opposite directions