Sampling (Biology) - Revision history

Ellen References at 18:05, 12 November 2019

2019-11-12T18:05:07Z

NRJC at 14:01, 3 April 2019

2019-04-03T14:01:38Z

NRJC: Created page with "==Key Stage 4== ===Meaning=== '''Sampling''' is when a scientist looks at several small areas of an organism or an ecosystem and calculates a mean average..."

2018-11-18T16:37:21Z

Created page with "==Key Stage 4== ===Meaning=== '''Sampling''' is when a scientist looks at several small areas of an organism or an ecosystem and calculates a mean average..."

New page

==Key Stage 4==
===Meaning===
'''Sampling''' is when a [[scientist]] looks at several small areas of an [[organism]] or an [[ecosystem]] and calculates a [[mean]] [[average]] to make an [[estimate]] over the total area.

===About Sampling===
: '''Sampling''' is used when it is not possible to count all of a specific feature within an entire [[organism]] or [[ecosystem]].
: '''Sampling''' allows a [[scientist]] to [[estimate]] the total spread of a feature over an entire [[organism]] or [[ecosystem]].
: When '''sampling''' the features of an [[organism]] a [[microscope]] may be used to several small sections of that [[organism]].
: When '''sampling''' small [[plant]]s in an [[ecosystem]] a [[quadrat]] may be used to find the number of those [[plant]]s in a given [[area]].

===Examples===
{| class="wikitable"
|-
|[[File:Stomata.png|center|400px]]
|[[File:Quadrat.png|center|400px]]
|-
| style="height:20px; width:200px; text-align:center;" |The number of [[stomata]] in the '''sample''' is counted and the number of [[stomata]] on the [[leaf]] can be estimated by multiplying the number in this area by the number of these areas that would fit on a [[leaf]].
| style="height:20px; width:200px; text-align:center;" |The fraction of [[plant]] coverage within the [[quadrat]] [[sample]] is counted by adding up the number of squares with [[plant]] coverage then this area. The same is done for several other areas within this [[ecosystem]] and a [[mean]] [[average]] is taken to [[estimate]] the [[average]] coverage of [[plant]]s within this [[ecosystem]].
|}

← Older revision		Revision as of 18:05, 12 November 2019
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	\| style="height:20px; width:200px; text-align:center;" \|The fraction of [[plant]] coverage within the [[quadrat]] [[sample]] is counted by adding up the number of squares with [[plant]] coverage then this area. The same is done for several other areas within this [[ecosystem]] and a [[Mean Average\|mean average]] is taken to [[estimate]] the [[Mean Average\|average]] coverage of [[plant]]s within this [[ecosystem]].		\| style="height:20px; width:200px; text-align:center;" \|The fraction of [[plant]] coverage within the [[quadrat]] [[sample]] is counted by adding up the number of squares with [[plant]] coverage then this area. The same is done for several other areas within this [[ecosystem]] and a [[Mean Average\|mean average]] is taken to [[estimate]] the [[Mean Average\|average]] coverage of [[plant]]s within this [[ecosystem]].
	\|}		\|}
		+
		+	===References===
		+	====AQA====
		+
		+	:[https://www.amazon.co.uk/gp/product/1471851338/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851338&linkCode=as2&tag=nrjc-21&linkId=425855d5890466e47189e1c21b67a1ea ''Sampling, pages 251-5, 267-8, GCSE Biology, Hodder, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782946381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946381&linkCode=as2&tag=nrjc-21&linkId=5ec5fc3f6429e30c1d9ab9bca2bccf93 ''Sampling, pages 293, 294, GCSE Combined Science Trilogy; Biology, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Sampling, pages 328-9, GCSE Chemistry; Student Book, Collins, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Sampling, pages 373, 374, GCSE Biology, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10269 ''Sampling, pages 5, 240, GCSE Combined Science; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Sampling, pages 67, 262-263, GCSE Biology; Third Edition, Oxford University Press, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Sampling, pages 89-100, GCSE Combined Science Trilogy 2, Hodder, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Sampling; Using quadrats, pages 90-3, GCSE Combined Science Trilogy 2, Hodder, AQA '']

@@ Line 1: / Line 1: @@
 ==Key Stage 4==
 ===Meaning===
-'''Sampling''' is when a [[scientist]] looks at several small areas of an [[organism]] or an [[ecosystem]] and calculates a [[mean]] [[average]] to make an [[estimate]] over the total area.
+'''Sampling''' is when a [[scientist]] looks at several small areas of an [[organism]] or an [[ecosystem]] and calculates a [[Mean Average|mean average]] to make an [[estimate]] over the total area.
 ===About Sampling===
@@ Line 16: / Line 16: @@
 |-
 | style="height:20px; width:200px; text-align:center;" |The number of [[stomata]] in the '''sample''' is counted and the number of [[stomata]] on the [[leaf]] can be estimated by multiplying the number in this area by the number of these areas that would fit on a [[leaf]].
-| style="height:20px; width:200px; text-align:center;" |The fraction of [[plant]] coverage within the [[quadrat]] [[sample]] is counted by adding up the number of squares with [[plant]] coverage then this area. The same is done for several other areas within this [[ecosystem]] and a [[mean]] [[average]] is taken to [[estimate]] the [[average]] coverage of [[plant]]s within this [[ecosystem]].
+| style="height:20px; width:200px; text-align:center;" |The fraction of [[plant]] coverage within the [[quadrat]] [[sample]] is counted by adding up the number of squares with [[plant]] coverage then this area. The same is done for several other areas within this [[ecosystem]] and a [[Mean Average|mean average]] is taken to [[estimate]] the [[Mean Average|average]] coverage of [[plant]]s within this [[ecosystem]].
 |}