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






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






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






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






5. This name is not always capitalized - in botany refers to a group of plants that can interbreed only among themselves






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






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






8. Is change that is gradual






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






10. Parent material that the wind transports






11. Refer in botanical use as the edible parts of plant - other than the flower






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






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






14. Cannot be fertilized by their own pollen






15. Ripe ovaries or groups of ripened ovaries that contain seeds.






16. Increases organic matter and disburses aggregates






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






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






19. Have numerous roots that are branched out.






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






21. What do roots do for the plant






22. The ___ horizon tops the profile and contains mostly organic matter - with a decomposed vegetation structure that enriches the soil with nutrients and helps it retain moisture.






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






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






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






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






27. In a tomato is from a fast uptake of water such as from sownpurs or excessive watering.






28. Refers to the first name used in binomial nomenclature. Capitalized word that refers to a plant cluster that has similarities that can be recognized easily.






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






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






31. 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.






32. The waxy substance that makes up cuticles.






33. The only vegetable used as a fruit






34. Leaf rust is a form of






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






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






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






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






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






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






41. 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.






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






43. Help decrease the amount of excessive nutrients that can enter the water from storm runoff.






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






45. Are the first leaves to appear after seeds germinate






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






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






48. Protect the plant






49. Which holds and captures pollen - and the style.






50. Are those chemicals that control a target pest