Sampling Techniques And Measurment Of Biotic And Abiotic Factors 3.3 Flashcards
Advantage of transect
A line transact provides information on what organisms are there
Illistrates visual changes a long a line
What is a sample
A group of organisms taken to find out about the nature of the whole population
Disadvantages of a transept
Some organisms on either side of the line would not be sampled
What is the purpose of calculating an average result
A more representative estimate is obtained any atypical result has less significant effect on the final answer
Advantages of pitfall trap
Alcohol kills and preserves the animals so they cannot escape or eat each other
Disadvantages of pitfall trap
This is distructive and affects the ecosystem which is being investigated
Which species in unable to grow if exposed to air?
Laminaria
Which three species u find growing between low tide and mid tide
Bladder wrack serrated wrack and egg wrack