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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 composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






2. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.






3. Controls hunger and thirst






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






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






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






7. Are the organelles where cellular respiration occurs.






8. 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.






9. The total amount of genetic information available for a given species.






10. 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






11. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.






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






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






14. Contains optic lobes - controls sight.






15. Biotic (living) factors such as population and food source - and abiotic (non-living) factors such as weather - temperature - soil features - sunlight).






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






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






18. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).






19. Is a packet of digestive enzymes that destroy cellular wastes.






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






21. Absorb a photon of light and is found in the grana of the chloroplast.






22. Nonvascular plants such as mosses which lack tissue for conducting food or water.






23. 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.






24. Inorganic phosphate






25. Plants and animals obtain usable nitrogen






26. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






27. Is the organelle where cellular reproductive processes occur.






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






29. Is the outermost layer of cells of the stem.






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






31. The phyla of round worms.






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






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






34. The phyla composed of segmented worms.






35. Refers to the birthrate of a population.






36. This is a carboxyl group and is the signature group found within organic acids.






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






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






39. An orienting response to light.






40. The phyla of sponges.






41. Is a molecule that stores information for protein synthesis and genetic coding.






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






43. High temperatures






44. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).






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






46. Is a kingdom that includes algae and protozoa.






47. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.






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






49. The process of forming eggs and sperm cells in the reproductive organs.






50. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.