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Biology
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Explain the sliding-filament theory

Annotated diagram of a sarcomere. Explaining the key steps

Answered by Joonatan P. • Biology tutor
1350 Views

Compare the advantages and disadvantages of light and electron microscopes.

Electron microscopes have higher magnification and higher resolution than light microscopes. Scanning electron microscopes can be used to examine the surface of cells and structuresLight microscopes can b...

Answered by Tutor280110 D. • Biology tutor
16819 Views

How does natural selection occur?

There are two important terms to understand (and state in an exam!) to answer this question. 1) Genetic diversity = the number of different alleles of genes

Answered by Tess W. • Biology tutor
3958 Views

Why do insects and other animals need developed transport systems?

They have a high metabolic rateAs a result, they have a high oxygen and glucose demandDiffusion is not efficient alone as it is too far

Answered by Freya B. • Biology tutor
3908 Views

Describe the sequence of events of the clotting cascade that will lead to a blood clot in a damaged blood vessel

Thromboplastin is released from damaged tissue and platelets, which activates an enzyme that catalyses the conversation of the protein prothrombin to thrombin. This occurs in the presence of Calcium and V...

Answered by Laura T. • Biology tutor
4183 Views

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