Transects and Quadrats (AQA Biology Unit 2)

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Adamtoo
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What do you need to know for these two. All I currently know is that a tape measure can be used a transect line in two neighbouring habitats. Quadrats then have to be placed at regular intervals along the transect and you can calculate the percentage of distribution in each quadrat or simply count how many there are. This can then be repeated multiple times by placing the transect randomly and then after working out the mean. Anything I missed out?
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zeldor711
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(Original post by Adamtoo)
What do you need to know for these two. All I currently know is that a tape measure can be used a transect line in two neighbouring habitats. Quadrats then have to be placed at regular intervals along the transect and you can calculate the percentage of distribution in each quadrat or simply count how many there are. This can then be repeated multiple times by placing the transect randomly and then after working out the mean. Anything I missed out?
You can also use quadrats by themselves by throwing them randomly
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Adamtoo
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(Original post by zeldor711)
You can also use quadrats by themselves by throwing them randomly
Ah okay, thought it had to be with the transect.
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zeldor711
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(Original post by Adamtoo)
Ah okay, thought it had to be with the transect.
That is also ok
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bikiniikilll
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Can anyone explain Mitosis and Meiosis in the easiest possible way?
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Adamtoo
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(Original post by bikiniikilll)
Can anyone explain Mitosis and Meiosis in the easiest possible way?
Mitosis= Type of cell devision that is used to: forming replacement cells; during growth and for asexual reproduction. The genetic material (or chromosomes) is copied and the cell divides ONCE to form two genetically identical cells to the original cell. (You don't need to know the stages, just the process of it)

Meiosis= Type of cell devision that makes gametes. The genetic material is copied and then the cells divides TWICE to form four cells that are not genetically identical. They each contain a single set of chromosomes (half number of chromosomes as the original cell)

hope it helps!
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bikiniikilll
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(Original post by Adamtoo)
Mitosis= Type of cell devision that is used to: forming replacement cells; during growth and for asexual reproduction. The genetic material (or chromosomes) is copied and the cell divides ONCE to form two genetically identical cells to the original cell. (You don't need to know the stages, just the process of it)

Meiosis= Type of cell devision that makes gametes. The genetic material is copied and then the cells divides TWICE to form four cells that are not genetically identical. They each contain a single set of chromosomes (half number of chromosomes as the original cell)

hope it helps!
Thankyou ! Its so much simpler than my revision guide.
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Adamtoo
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(Original post by bikiniikilll)
Thankyou ! Its so much simpler than my revision guide.
Np and yeah the revision guides tend to go in depth and give unnecessary information, just understand the concepts of both and differences.
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ol-16aliala
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(Original post by bikiniikilll)
Can anyone explain Mitosis and Meiosis in the easiest possible way?
meiosis cells keep replicating and mitosis cells replicate until they have identical cells
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