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






2. Support stems






3. What do roots do for the plant






4. The system that moves water and minerals is called a






5. An embryo then develops inside a tissue that is protective and both layers are known as a






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






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






8. Is a cyclic irrigation application that delivers water to land during a series of on and off time spans known as hydraulic surges.






9. Are inactive parts of pesticide used for diluting a pesticide or to make it safer - easier to mix - measure - apply or more effective.






10. Parent material moved by gravity






11. Are created when microbes from decomposed organic matter make compounds that make soil particles hold together.






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






13. Have a two - year growth cycle






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






15. Is where the formation of pollen takes place






16. Below the O horizon - the __ horizon is where the mineral soil begins. It combines organic matter with weathered products.






17. Is a reference to the size of portions of the design in relation to one another.






18. The male portion of a flower






19. Are those chemicals that control a target pest






20. Increase the roots capacity to absorb to water and nutrients






21. Plants retain their leaces all year






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






23. Refers to a plant froup with male and female plants occuring on the same plant such as corn and squash






24. The part of the system that moves the food is known as the






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






26. Repeated features such as plants. These features have like shape - form - texture - and color.






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






28. A process in which nitrogen gas in the atmosphere is converted into ammonia.






29. Is change that is gradual






30. Contain a strong primary root along with roots that branch out on the side






31. Protect the plant






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






33. Uses a variety of combinations to control pest - generally one that does the least harm to the pest of the environment.






34. Are brightly colored forms in which leaves may be modified






35. Plants that live their entire life cycle n one growing season






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






37. 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.






38. 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.






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






40. Should be used when mixed plantings are made during marginal planting periods.






41. Materials developing or weathering in place and are not transported






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






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






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






45. The waxy substance that makes up cuticles.






46. Is a wind - moved material that is silt - sized or smaller






47. The system that allows the lifeblood or water - nutrients and food through the plant






48. Are flowers and shoots not yet developed






49. Are plants grouped because of its ability to grow in girth






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







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Can you answer 50 questions in 15 minutes?


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