AY Honors/Grasses/Answer Key - Revision history

W126jep: Marked this version for translation

2021-04-13T16:02:13Z

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W126jep at 16:01, 13 April 2021

2021-04-13T16:01:54Z

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2021-03-19T02:36:46Z

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2020-12-26T01:14:15Z

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Jomegat bot: Jomegat bot moved page Adventist Youth Honors Answer Book/Nature/Grasses to AY Honors/Grasses/Answer Key: Bot: Moved page

2020-12-19T17:56:03Z

Jomegat bot moved page AY Honor Grasses to AY Honor Grasses Answer Key: Bot: Moved page

W126jep: - Completed Honors category

2015-07-30T07:16:14Z

- Completed Honors category

W126jep at 22:15, 16 October 2014

2014-10-16T22:15:13Z

W126jep at 20:35, 16 October 2014

2014-10-16T20:35:36Z

W126jep at 03:52, 7 October 2014

2014-10-07T03:52:35Z

W126jep at 13:10, 5 October 2014

2014-10-05T13:10:16Z

@@ Line 6: / Line 6: @@
 Grasses generally have the following characteristics:
 [[Image:Grass-plant-structure.png|250px|thumb|left|Structure of a grass plant.]]
-Poaceae have hollow stems called '''''culms''''', plugged at intervals called '''''nodes'''''. Leaves are alternate, ''distichous'' (in one plane) or rarely spiral, parallel-veined and arise at the nodes. Each leaf is differentiated into a lower '''''sheath''''' hugging the stem for a  distance and a '''''blade''''' with margin usually entire (meaning continuous and un-toothed). The leaf blades of many grasses are hardened with silica phytoliths, which helps discourage grazing animals. In some grasses (such as sword grass) this makes the grass blades sharp enough to cut human skin. A membranous appendage or fringe of hairs, called the ''ligule'', lies at the junction between sheath and blade, preventing water or insects from penetrating into the sheath.
+Poaceae have hollow stems called '''''culms''''', plugged at intervals called '''''nodes'''''. Leaves are alternate, ''distichous'' (in one plane) or rarely spiral, parallel-veined and arise at the nodes. Each leaf is differentiated into a lower '''''sheath''''' hugging the stem for a distance and a '''''blade''''' with margin usually entire (meaning continuous and un-toothed). The leaf blades of many grasses are hardened with silica phytoliths, which helps discourage grazing animals. In some grasses (such as sword grass) this makes the grass blades sharp enough to cut human skin. A membranous appendage or fringe of hairs, called the ''ligule'', lies at the junction between sheath and blade, preventing water or insects from penetrating into the sheath.
 <br style="clear:both">
@@ Line 14: / Line 14: @@
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 <!-- 2. What kind of roots do all grasses have? -->
-Grasses (and several other plants) have roots called ''rhizomes''.  A rhizome is a horizontal stem of a plant that is usually found underground and often sends out roots and shoots from its nodes.  Rhizomes may also be referred to as creeping rootstalks, or rootstocks.  Rhizomes typically have short internodes; they send out roots from the bottom of the nodes and new vertically growing shoots from the top of the nodes.
+Grasses (and several other plants) have roots called ''rhizomes''. A rhizome is a horizontal stem of a plant that is usually found underground and often sends out roots and shoots from its nodes. Rhizomes may also be referred to as creeping rootstalks, or rootstocks. Rhizomes typically have short internodes; they send out roots from the bottom of the nodes and new vertically growing shoots from the top of the nodes.
 For many plants, the rhizome acts as the "seed", and is used by humans to propagate the plants.
@@ Line 131: / Line 131: @@
 <noinclude><translate></noinclude>
 <!-- 9. Do one of the following: -->
-Review requirement 11 before starting on this one.  If you follow requirement 11 as outlined, requirement 9a will be fulfilled.
+Review requirement 11 before starting on this one. If you follow requirement 11 as outlined, requirement 9a will be fulfilled.
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@@ Line 145: / Line 145: @@
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=9b}}
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-The most important use of grass in the world is as a food staple.  Entire civilizations were founded on the ability to grow grain.  Rice is used in Asia; wheat, rye, and oats in Europe and Africa, and corn in the Americas.
+The most important use of grass in the world is as a food staple. Entire civilizations were founded on the ability to grow grain. Rice is used in Asia; wheat, rye, and oats in Europe and Africa, and corn in the Americas.
-Grass is also used as the main plant on lawns, as feed for livestock, in broom making, thatching, and for fuels (including biodiesel).  Corn husks are used for making dolls as well as for cooking vessels (i.e., wrap the food in corn husks and place it on a bed of coals).
+Grass is also used as the main plant on lawns, as feed for livestock, in broom making, thatching, and for fuels (including biodiesel). Corn husks are used for making dolls as well as for cooking vessels (i.e., wrap the food in corn husks and place it on a bed of coals).
 Grass is also used for making clothing (hula skirts anyone?), mats, composting, mulching, bedding for humans and for livestock, and even as a primary building material in straw-bale construction.
 It was used in rope-making by the Incas in South America, and these ropes would then be used to build bridges spanning large canyons.
@@ Line 156: / Line 156: @@
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 <!-- 10. Press or dry, mount, and correctly label the flower stalks or seed stalks of five pestiferous grasses that are commonly considered to be weeds. -->
-"Pestiferous" means "weedy" in this case, and you should keep in mind, that a weed is any species growing where it is not wanted by humans.  Fescue in the flower bed is a weed.  Fescue in the lawn is not.  Use your own judgement as to what is and what is not a weed.
+"Pestiferous" means "weedy" in this case, and you should keep in mind, that a weed is any species growing where it is not wanted by humans. Fescue in the flower bed is a weed. Fescue in the lawn is not. Use your own judgement as to what is and what is not a weed.
-Flower stalks should be pressed, and seed stalks should be dried.  To press the flower stalks, place them between paper towels or some other absorbent material, then place between the pages of a heavy book.  Close the book, and if desired, place the book at the bottom of a large stack of books.  Another way to press them is to place the plants again between paper towels, then place that between two boards.  Clamp the boards together.  Whichever approach you use, leave the specimens there for several days.
+Flower stalks should be pressed, and seed stalks should be dried. To press the flower stalks, place them between paper towels or some other absorbent material, then place between the pages of a heavy book. Close the book, and if desired, place the book at the bottom of a large stack of books. Another way to press them is to place the plants again between paper towels, then place that between two boards. Clamp the boards together. Whichever approach you use, leave the specimens there for several days.
-For drying, all you need to do is leave the grass in a dry environment - on top of a bookshelf or in a closet.  As long as it is dry, the seed stalks will dry just fine.
+For drying, all you need to do is leave the grass in a dry environment - on top of a bookshelf or in a closet. As long as it is dry, the seed stalks will dry just fine.
-To mount the stalks, simply fasten them in place on a sheet of paper using transparent tape.  This does not need to be nothing more than a spiral notebook, but if the Pathfinder wants to make it fancy, that should not be discouraged.
+To mount the stalks, simply fasten them in place on a sheet of paper using transparent tape. This does not need to be nothing more than a spiral notebook, but if the Pathfinder wants to make it fancy, that should not be discouraged.
 <noinclude></translate></noinclude>
@@ Line 168: / Line 168: @@
 This requirement is referring to an old version of requirement 9, which read as follows:
 :''Because of their value as food for man and/or his domestic animals, about sixty species of grasses are cultivated in the United States. Make a collection of, and correctly label, the seeds of ten of these valuable species.''
-The main difference between this requirement and the current incarnation of requirement 9a, is that this requirement stipulates that the plants should be pressed or dried, and mounted, and that they be grown to your neighborhood.  Therefore, if the plants collected in requirement 9a are collected from your neighborhood, and if they are pressed or dried and mounted, this requirement is already finished.
+The main difference between this requirement and the current incarnation of requirement 9a, is that this requirement stipulates that the plants should be pressed or dried, and mounted, and that they be grown to your neighborhood. Therefore, if the plants collected in requirement 9a are collected from your neighborhood, and if they are pressed or dried and mounted, this requirement is already finished.
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 [[Category:Adventist Youth Honors Answer Book|{{SUBPAGENAME}}]]
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 ==References== <!--T:15-->
 [[Category:Adventist Youth Honors Answer Book|{{SUBPAGENAME}}]]
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← Older revision	Revision as of 17:56, 19 December 2020
(No difference)

@@ Line 12: / Line 12: @@
 ==1. What characteristics must a plant have to qualify as a grass?== <!--T:1-->
 Grasses generally have the following characteristics:
 [[Image:Grass-plant-structure.png|250px|thumb|left|Structure of a grass plant.]]
 Poaceae have hollow stems called '''''culms''''', plugged at intervals called '''''nodes'''''. Leaves are alternate, ''distichous'' (in one plane) or rarely spiral, parallel-veined and arise at the nodes. Each leaf is differentiated into a lower '''''sheath''''' hugging the stem for a  distance and a '''''blade''''' with margin usually entire (meaning continuous and un-toothed). The leaf blades of many grasses are hardened with silica phytoliths, which helps discourage grazing animals. In some grasses (such as sword grass) this makes the grass blades sharp enough to cut human skin. A membranous appendage or fringe of hairs, called the ''ligule'', lies at the junction between sheath and blade, preventing water or insects from penetrating into the sheath.
 <br style="clear:both">
-==2. What kind of roots do all grasses have?== <!--T:3-->
+==2. What kind of roots do all grasses have?== <!--T:2-->
 Grasses (and several other plants) have roots called ''rhizomes''.  A rhizome is a horizontal stem of a plant that is usually found underground and often sends out roots and shoots from its nodes.  Rhizomes may also be referred to as creeping rootstalks, or rootstocks.  Rhizomes typically have short internodes; they send out roots from the bottom of the nodes and new vertically growing shoots from the top of the nodes.
 For many plants, the rhizome acts as the "seed", and is used by humans to propagate the plants.
-==3. About how many species around the world are there in the grass family called Gramineae or Poaceae?== <!--T:5-->
+==3. About how many species around the world are there in the grass family called Gramineae or Poaceae?== <!--T:3-->
 The '''[[W:Poaceae|Poaceae]]''' is also known as the '''[[W:Gramineae|Gramineae]]'''. There are about 600 genera and between 9,000 to 10,000 species of these plants. Plant communities dominated by Poaceae are called grasslands; it is estimated that grasslands comprise 20% of the vegetation cover of the earth. This family is the most important of all plant families to human economies: it includes the staple food grains grown around the world, lawn and forage grasses, and bamboo, widely used for construction throughout Asia.
-==4. Do the seeds of grasses have two halves as does the bean (a dicotyledon), or does the seed consist of just one part as do the lily, date, and coconut (monocotyledons)?== <!--T:7-->
+==4. Do the seeds of grasses have two halves as does the bean (a dicotyledon), or does the seed consist of just one part as do the lily, date, and coconut (monocotyledons)?== <!--T:4-->
 All grasses are monocotyledons, so the seeds have only one part.
-==5. What unique characteristic in the growth of grass leaves makes it possible for the plant to flourish even though continually mowed or grazed?== <!--T:8-->
+==5. What unique characteristic in the growth of grass leaves makes it possible for the plant to flourish even though continually mowed or grazed?== <!--T:5-->
 Grass blades grow at the base of the blade and not from growing tips. This location of the grass growing point near the ground allows it to be grazed or mowed regularly without damage to the growing point.
-==6. Name three annual grasses, that is, grasses that sprout from seeds, blossom, bear seeds, and then die the same summer.== <!--T:9-->
+==6. Name three annual grasses, that is, grasses that sprout from seeds, blossom, bear seeds, and then die the same summer.== <!--T:6-->
 * Barnyard grass (''Echinochloa crus-galli'')
 * Crabgrass (''Digitaria spp.'')
@@ Line 40: / Line 35: @@
 * Foxtail grass (''Alopecurus spp.'')
-==7. Name three perennial grasses, that is, grasses whose roots live on from year to year, although the top dies down to the crown each autumn.== <!--T:10-->
+==7. Name three perennial grasses, that is, grasses whose roots live on from year to year, although the top dies down to the crown each autumn.== <!--T:7-->
 * Couch Grass (''Elytrigia repens'')
 * Panicum (''Panicum spp.'')
@@ Line 48: / Line 41: @@
 * Kentucky bluegrass (''Poa pratensis'')
-==8. In each of the following cases name a single grass, or more where indicated, from which the product is made:== <!--T:12-->
+==8. In each of the following cases name a single grass, or more where indicated, from which the product is made:== <!--T:8-->
 ===a. Bread (three grasses)===
 Wheat, Rye, Barley, Oats, Corn
-===b. Brooms === <!--T:13-->
+===b. Brooms === <!--T:9-->
 Broomsedge
 ===c. Fishing poles===
@@ Line 61: / Line 54: @@
 Wheat, Rye, Corn
-===f. Hay=== <!--T:14-->
+===f. Hay=== <!--T:10-->
 Rye, Timothy, Brome, Fescue, Coastal Bermuda, Orchard grass
 ===g. Hominy===
@@ Line 76: / Line 69: @@
 Wheat
-==9. Do one of the following:== <!--T:15-->
+==9. Do one of the following:== <!--T:11-->
 Review requirement 11 before starting on this one.  If you follow requirement 11 as outlined, requirement 9a will be fulfilled.
-===a. Collect and correctly label ten cultivated grasses.=== <!--T:16-->
+===a. Collect and correctly label ten cultivated grasses.=== <!--T:12-->
 Cultivated grasses include the cereal grains as well as lawn grasses:
 ;Grains:
@@ Line 87: / Line 80: @@
 ===b. Write an essay on the various uses of grasses by different people around the world.===
 The most important use of grass in the world is as a food staple.  Entire civilizations were founded on the ability to grow grain.  Rice is used in Asia; wheat, rye, and oats in Europe and Africa, and corn in the Americas.
 Grass is also used as the main plant on lawns, as feed for livestock, in broom making, thatching, and for fuels (including biodiesel).  Corn husks are used for making dolls as well as for cooking vessels (i.e., wrap the food in corn husks and place it on a bed of coals).
 Grass is also used for making clothing (hula skirts anyone?), mats, composting, mulching, bedding for humans and for livestock, and even as a primary building material in straw-bale construction.
 It was used in rope-making by the Incas in South America, and these ropes would then be used to build bridges spanning large canyons.
-==10. Press or dry, mount, and correctly label the flower stalks or seed stalks of five pestiferous grasses that are commonly considered to be weeds.== <!--T:20-->
+==10. Press or dry, mount, and correctly label the flower stalks or seed stalks of five pestiferous grasses that are commonly considered to be weeds.== <!--T:13-->
 "Pestiferous" means "weedy" in this case, and you should keep in mind, that a weed is any species growing where it is not wanted by humans.  Fescue in the flower bed is a weed.  Fescue in the lawn is not.  Use your own judgement as to what is and what is not a weed.
 Flower stalks should be pressed, and seed stalks should be dried.  To press the flower stalks, place them between paper towels or some other absorbent material, then place between the pages of a heavy book.  Close the book, and if desired, place the book at the bottom of a large stack of books.  Another way to press them is to place the plants again between paper towels, then place that between two boards.  Clamp the boards together.  Whichever approach you use, leave the specimens there for several days.
 For drying, all you need to do is leave the grass in a dry environment - on top of a bookshelf or in a closet.  As long as it is dry, the seed stalks will dry just fine.
 To mount the stalks, simply fasten them in place on a sheet of paper using transparent tape.  This does not need to be nothing more than a spiral notebook, but if the Pathfinder wants to make it fancy, that should not be discouraged.
-==11. In addition to your collection of flower or seed stalks of pestiferous kinds, press, mount, and correctly name the flower stalks or seed stalks of ten additional grasses that grow in your neighborhood. This collection may include some of the plants whose seeds are in your collection of cultivated grasses.== <!--T:24-->
+==11. In addition to your collection of flower or seed stalks of pestiferous kinds, press, mount, and correctly name the flower stalks or seed stalks of ten additional grasses that grow in your neighborhood. This collection may include some of the plants whose seeds are in your collection of cultivated grasses.== <!--T:14-->
 This requirement is referring to an old version of requirement 9, which read as follows:
 :''Because of their value as food for man and/or his domestic animals, about sixty species of grasses are cultivated in the United States. Make a collection of, and correctly label, the seeds of ten of these valuable species.''
 The main difference between this requirement and the current incarnation of requirement 9a, is that this requirement stipulates that the plants should be pressed or dried, and mounted, and that they be grown to your neighborhood.  Therefore, if the plants collected in requirement 9a are collected from your neighborhood, and if they are pressed or dried and mounted, this requirement is already finished.
-==References== <!--T:26-->
+==References== <!--T:15-->
 </translate>
 [[Category:Adventist Youth Honors Answer Book/Completed Honors|{{SUBPAGENAME}}]]

AY Honors/Grasses/Answer Key - Revision history

W126jep: Marked this version for translation

W126jep at 16:01, 13 April 2021

Jomegat bot: Bot: Automated import of articles *** existing text overwritten ***

Jomegat bot: Bot: Automated import of articles *** existing text overwritten ***

Jomegat bot: Jomegat bot moved page Adventist Youth Honors Answer Book/Nature/Grasses to AY Honors/Grasses/Answer Key: Bot: Moved page

W126jep: - Completed Honors category

W126jep at 22:15, 16 October 2014

W126jep at 20:35, 16 October 2014

W126jep at 03:52, 7 October 2014

W126jep at 13:10, 5 October 2014

Jomegat bot: Bot: Automated import of articles * existing text overwritten *

Jomegat bot: Bot: Automated import of articles * existing text overwritten *