Sampling Techniques And Measurment Of Biotic And Abiotic Factors 3.3 Flashcards

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0
Q

Advantage of transect

A

A line transact provides information on what organisms are there
Illistrates visual changes a long a line

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1
Q

What is a sample

A

A group of organisms taken to find out about the nature of the whole population

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2
Q

Disadvantages of a transept

A

Some organisms on either side of the line would not be sampled

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3
Q

What is the purpose of calculating an average result

A

A more representative estimate is obtained any atypical result has less significant effect on the final answer

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4
Q

Advantages of pitfall trap

A

Alcohol kills and preserves the animals so they cannot escape or eat each other

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5
Q

Disadvantages of pitfall trap

A

This is distructive and affects the ecosystem which is being investigated

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6
Q

Which species in unable to grow if exposed to air?

A

Laminaria

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7
Q

Which three species u find growing between low tide and mid tide

A

Bladder wrack serrated wrack and egg wrack

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