Test your basic knowledge |

Praxis Plant Science Botany

Subjects : praxis, botany
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. Are created when microbes from decomposed organic matter make compounds that make soil particles hold together.






2. Cannot be fertilized by their own pollen






3. Refers to the movement through the soil of molecules.






4. Full width tilage involving one or more trips during the soil surface is tilled. Done before or during planting.






5. Come from effective components used to express a main idea through a consistent style






6. The soils should be avoided because it pushes aggregates together - causing them to eventually break down






7. Below the E horizon - the ___ horizon is where fine material has accumulated to create a dense layer in the soil. May be enriched with calcium carbonate in the form of a layer or nodule.






8. Materials that are moved by streams and deposited into fresh water.






9. The growing of roots into new soil that contacts available nutrients






10. Refers to woody plants that lse leaves or needle each winter






11. Are new of hybrid plants in which hybridization has been manipulated by humans






12. Are a man made means of treating water through natural processes using plants - animals - microorganisms and the environment itself.






13. Is breaking soil out of clods and breaking in finer clumps. Do this after you plow.






14. One of several conservation tillage types used to cover 30 percent or more of pasture with crop residue.






15. Occurs when pollen is carried from one plant to another






16. The female portion of a flower






17. When soil detaches from a portion of the soil profile or the surface of the soil






18. Plants retain their leaces all year






19. A protective layer outside the surface of a leaf.






20. The male portion of a flower






21. A stem also has a part known as a ___ - which produces tissue that lengthens the stem






22. Is where the formation of pollen takes place






23. Are tiny leaf openings on the leaf surface - allows plants to release and take in gases - such as carbon dioxide - oxygen - and water vapor






24. A condition in which wind or heat take too much water from a plant






25. Are the smallest known living organisms that may reporuce and live apart from other living organisms.






26. Soil is undisturbed from harvest to planting - in strips up to 1/3 of the row width.






27. Parent material that the wind transports






28. Parent material moved by gravity






29. When light is used to convert carbon dioxide and water into plant food.






30. Increases organic matter and disburses aggregates






31. The waxy substance that makes up cuticles.






32. Are groups of plants developing new characteristics that occur naturally though hybridization.






33. Below the A horizon - the ___ horizon is usually light colored layer - with clay particles having been leached or removed. Contains organic matter as well as iron oxides and aluminum.






34. Reducing a design to its simplest and most functional form.






35. What do roots do for the plant






36. For each field should then be analyzed based on the soil productivity and management that is intended.






37. Examples os plants classified by growth patterns - have conducting rubes throughout their stems






38. Flowers with several simple pistils formed






39. Have a two - year growth cycle






40. Are the first leaves to appear after seeds germinate






41. The loss of water by plants from both evaporation and transpiration.






42. A tomato disorder marked by a black or leathery brown spot on the fruits bottom.






43. One of several major factors influencing soil characteristics.






44. Refers to plants with only male or female flower on a single plant such as hollies






45. Are plants that may live multiple years and may form flowers and seeds every year






46. A technology for growing plants in nutrient solutions with an artificial medium that providing mechanical support.






47. Pollinated from the same flower or other flowes on the same






48. By crops is dependent on the soils nutrient supply - the area of the root surface area and the root activity.






49. The system using two names to identify plants.






50. Are organisms that can kill or reduce the ability to reporduce in other organisms