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Explain why the number of organisms typically reduces along a food chain

The number of organisms reduces because between each level of the food chain about 10% of energy is lost through movement, through not the full organism on the previous level being eaten as bones and hair ar...
AS
Answered by Anna S. • Biology tutor
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Identify a factor that affects accuracy of memory and describe how it affects the accuracy of memory

One factor is interference. New learning may cause either proactive or retroactive interference, where another memory is recalled instead of the one needed. An example of proactive interference is recalling ...
AS
Answered by Anna S. • Psychology tutor
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Identify the main muscle groups and the movements they perform to perform a squat

The quadriceps work eccentrically on the way down for the squat, as the hamstrings contract concentrically. Then on the way up, the hamstrings relax, while the quadriceps contract concentrically.
AS
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Two types of long term memory are procedural and episodic. Explain two differences

While procedural memory is mainly related to motor skills, episodic memory stores memories of life events meaning they have different purposes. Another difference is that episodic memory is declarative meani...
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Answered by Anna S. • Psychology tutor
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Explain how DNA is replicated within the cell.

DNA is replicated within the nucleus of the cell through a process called semi-conservative replication. The first part of the process involves the splitting of the double stranded molecule into two separate...
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Answered by Callum B. • Biology tutor
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