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. The class composed of birds.






2. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.






3. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






4. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






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






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






7. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






8. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






9. Are the organelles where cellular respiration occurs.






10. Is a phylum that contains jellyfish - hydra - etc.






11. 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.






12. Develops from the morula as a thin layer of cells surrounding an internal cavity.






13. In DNA Thymine pairs with...






14. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.






15. Cleave strands of DNA segments at certain sites.






16. All store energy within their chemical bonds.






17. Decomposition of living matter for consumption.






18. Synthesis






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






20. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.






21. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.






22. Is weaker than ionic - covalent - disulfide - or double bonds.






23. 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.






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






25. Process of breaking down complex materials (foods) to form simpler substances and release energy.






26. When the water concentration inside and outside the cell is equal - It is said to be in an...






27. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






28. 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.






29. 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.






30. Some energy is lost as heat and becomes unusable.






31. High temperatures






32. The phyla composed of segmented worms.






33. A hydrogen bond involves the ________________ and can be easily broken.






34. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).






35. When stems bend toward the light it is due to _____________ the hormone auxin - in response to light - migrates from the light to the dark side of the shoot tip. The cells on the dark side now contain more auxin - which causes the cells on that side






36. Includes all living and nonliving components of the Earth to support living things.






37. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






38. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.






39. Ended with the extinction of the dinosaurs.






40. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






41. Protein synthesis






42. The phyla of sponges.






43. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.






44. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.






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






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






47. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






48. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






49. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.






50. Is the outermost of the three main layers of an embryo.