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






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






3. As in the sense of a plant part - is a structure that produces seeds.






4. What do roots do for the plant






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






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






7. A cluster or several flowers






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






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






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






11. Cannot be fertilized by their own pollen






12. Support stems






13. Provide food for plants. absorb sunlight and transform it into food.






14. 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.






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






16. Increases organic matter and disburses aggregates






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






18. The female portion of a flower






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






20. Parent material that the wind transports






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






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






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






24. Formation of buds taking place.






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






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






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






28. 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.






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






30. Is moving liquid pesticide mixture through a filling hose and into a water source






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






32. The opposite of photosynthesis - uses food and oxygen to change chemical energy into heat for plants.






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






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






35. One of several major factors influencing soil characteristics.






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






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






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. Determine how long is an internodes length






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






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






42. How water is used in plants to carry nutrients






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






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






45. Plants retain their leaces all year






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






47. Are those chemicals that control a target pest






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






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






50. Scarring on the blossom end of a tomato