Unit 4 Study Guide

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Camboy
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Unit 4 Study Guide
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2014-04-28 09:55:57
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Unit 4 Science Study Guide
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  1. green material that uses light to make food.
    chlorophyll
  2. scaly fungus on algae and rocks.
    lichen
  3. sugar or starch, with two hydrogen atoms for each oxygen atom.
    carbohydrate
  4. number of living things of one kind.
    poplulation
  5. animal that kills other animals for its food
    predator
  6. action of breaking up the soil
    cultivation
  7. process of making food by using light and carbon dioxide.
    photosynthesis
  8. downward movement of water through the soil.
    percolation
  9. dead plant material in the soil.
    humus
  10. small plate containing chlorophyll in a plant cell.
    CHLOROPLAST
  11. Living together of two different things for certain benefits.
    symboisis
  12. method of growing plants without soil.
    hydroponics
  13. natural mixture in which plants can grow.
    soil
  14. source of parasites food.
    host
  15. living thing that lives on another living thing.
    parasite
  16. kind of animal that eats plants for food.
    herbivorous
  17. the passing of one food from one living thing to another.
    food chain
  18. one of the soil chemicals plants need to grow.
    nutrient
  19. what a predator seeks for its food.
    prey
  20. measure of how acid or base a soil is
    pH
  21. kind of animal that kills other animals for food.
    carnivorous 
  22. kind of soil in which plants grow well.
    fertile
  23. animal that seeks dead animals for food.
    scavenger
  24. all the things and conditions around a living thing.
    environment
  25. study of living things in relation to their surroundings.
    ecology
  26. green plants make sugar from the common materials ____ and _____
    water, carbon dioxide
  27. the sugar sold in stores come from plants called sugar ______ and sugar ____-
    cane, beets
  28. when we eat corn, bananas, or potatoes,we are eating the carbohydrate _______ that was made by sugar and stored in the plant.
    starch
  29. soil can hold much water if it has plenty of ________
    humus 
  30. besides making the soil loose, cultivation helps control _______
    weeds
  31. if the soil has a pH of 5, it would be good to ad some ____ to raise the pH
    lime 
  32. for plants roots to get water between rains, **GOD** provided __________ action.
    capillary
  33. plowing down plants, spreading manure, and adding compost are all ways to add ____ to the soil.
    X humus 
  34. green plants are the first link in the _____ ______
    FOOD CHAIN
  35. there is a ______ of _______ between the predator and prey
    balance, life
  36. a limited ____ ____ will keep a population from becoming too large.
    food supply
  37. weeds in a corn field make it hard to grow corn because of _______
    competition
  38. the Japanese beetle was brought under control by use of a disease _______
    germ
  39. man sometimes upsets the ___ of ___ by introducing a new kind of living thing to the area.
    balance, life
  40. a fish is the _____ to a sea lamprey attached to its side.
    host
  41. photosynthesis is an ideal process for all of the following reasons except: 

    a. all the products are useful
    b. the steps are few and simple
    c. energy is free and unlimited
    d. the raw materials are free and abundant
    b. the steps are few and simple
  42. which material named is followed by its correct chemical formula ?

    A. water HO2
    B. sugar C12H6O12
    C. carbon dioxide CO2
    D. oxygen O2H
    C. Carbon Dioxide Co2
    (this multiple choice question has been scrambled)
  43. which word part is not followed by its correct meaning? 

    a. photo: picture
    b. hydro: water
    c. carn: flesh
    d. sym: together
    a. photo: picture 
  44. green plants provide us with both food and:

    A. oxygen
    B. nitrogen
    C. carbon dioxide
    D. hydrogen
    A. oxygen
    (this multiple choice question has been scrambled)
  45. hydroponics shows us that 

    A. soil contains chemicals that are harmful to plants
    B. plants can be grown more easily without soil
    C. plants need more water and nutrients than soil can supply
    D. soil provides support, water, and nutrients
    D. soil provides support, water, and nutrients
    (this multiple choice question has been scrambled)
  46. a farmer may add fertilizer to the soil to increase the 

    A. humus
    B. percolation
    C. pH
    D. nutrients
    D. nutrients
    (this multiple choice question has been scrambled)
  47. a main dis-advantage of no-till farming is

    A. strong chemicals must be used
    B. more work is required
    C. the plants do not grow as well
    D. the weeds cannot be controlled
    A. strong chemicals must be used
    (this multiple choice question has been scrambled)
  48. sandy soil has better ____ than people usually want

    A. capillary action
    B. acids
    C. nutrients
    D. percolation
    D. percolation
    (this multiple choice question has been scrambled)
  49. which of these one statements is not correct.

    A. cats are herbivorous 
    B. man is omnivorous
    C. vultures are scavengers

    D. dogs are carnivorous 
    A. cats are herbrivorous
    (this multiple choice question has been scrambled)
  50. more people can be fed with corn than beef because 

    A. more people would rather eat corn products than beef
    B. various kinds of plants can be fed to beef cattle.
    C. its easier to prepare food from corn than beef.
    D. with beef, there is a greater loss in the food chain.
    D. with beef, there is a greater loss in the food chain
    (this multiple choice question has been scrambled)
  51. we can be thankful for scavengers because

    A. they help control the rat population
    B. they are an important link in the food chain
    C. they help keep the land clear
    D. they do not compete with herbivorous animals for food
    C. they help keep the land clean
    (this multiple choice question has been scrambled)
  52. plankton and lichen are similar in that

    A. both are parasites to animals
    B. both are found in ocean water
    C. both are made of more than one living thing
    D. both are an important source of food for birds
    C. both are made of more than one living thing
    (this multiple choice question has been scrambled)
  53. which statement is not true about animals and food they eat?

    a.  some whales strain their food with baleen
    b. rabbits have long canine teeth for bearing flesh 
    c. cows have several parts to their stomachs
    d. oxpeckers do a good service to cape buffalos
    b. rabbits have long canine teeth for bearing flesh.
  54. a good example of symbiosis is

    a. the relationship between hawks and mice
    b. fungus supplying water, and algae supplying food.
    c. the introduction of starlings to america
    d. the cow chewing her cud
    b. fungus supplying water, and algae supplying food.

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