Test your basic knowledge |

CLEP Biology

Subjects : clep, science, biology
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. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.






2. The phylum of insects (bees).






3. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.






4. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.






5. Carbon - Hydrogen - Oxygen - and Nitrogen






6. Is found in the root cap and is responsible for quick growth in the roots.






7. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.






8. Studied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed.






9. Has loosely packed cells that allow for gas and moisture exchange.






10. A suffix meaning 'to break apart.' O || ||






11. Breaking down






12. An enzyme is unaffected by the reactions it catalyzes






13. Is a special protein that acts as a catalyst for organic reactions.






14. Controls balance and muscle coordination






15. Contains optic lobes - controls sight.






16. Are cells involved in immunity and are produced in bone marrow as stem cells.






17. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.






18. Is a phylum that contains sponges.






19. Produce antibodies into the bloodstream that find and attach themselves to foreign antigens (toxins - bacteria).






20. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.






21. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






22. Transparency - polarity - high specific heat - and density (lower density when solid than when liquid.).






23. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.






24. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






25. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.






26. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






27. Ended with the extinction of the dinosaurs.






28. Digestive enzymes - hydrochloric acid - and gastric juices which aid in digestion. The mucous secreted by the stomach protects the stomach lining from the acids and juices.






29. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






30. Engages in both passive and active transport.






31. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.






32. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






33. Veins in the leaf and are also distributed throughout the stem






34. Niche






35. Are membrane-bound organelles that contain digestive enzymes that digest dead or unused material within the cell or materials absorbed by the cell for use.






36. The effect of a substrate concentration on the initial reaction rate in the presence of a limited amount of enzyme: _________________ as the concentration of substrate is increased until all the enzymes are used - then the reaction rate will level of






37. The cells of a developing embryo (at the gastrula stage) differentiate into layers - that will later develop into different tissues and organs - including the mesoderm - ectoderm - and endoderm.






38. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






39. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






40. Is the process that releases energy for use by the cell.






41. Is a behavior that is learned during a critical point (often very early) in an individual's life. Imprinting enables the young the recognize members of their own species.






42. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.






43. Layer that will become the skin - some endocrine glands - and the nervous system.






44. (of some plants or fungi) feeding on dead or decaying organic matter






45. Is disorganized - unravelled - DNA with histones attached.






46. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






47. Allows for the genetic code to be preserved in future generations of cells.






48. It secretes saliva which enters the digestive tract and aids the digestive process.






49. Has extreme cold temperatures - low precipitation - modified grassland - perma-frost - a short growing season and some plants and animals.






50. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.