Top answers

Biology
A Level

How is a message transferred across a synapse?

A synapse is a junction between the end of one neuron (known as the pre-synaptic neuron) and either another neuron (known as the post-synaptic neuron) or...

MB
Answered by Max B. Biology tutor
12708 Views

What is the difference between natural selection and evolution?

Evolution is a gradual change in the inherited traits of a population over many generations. 

Natural selection is a mechanism where the members of a population best suited to their environmen...

DA
Answered by Dara A. Biology tutor
81118 Views

Why does the thickness of the heart's chamber walls vary?

A chamber wall's thickness is directly linked to its function. Each of the 4 chambers has a different function and so, they each have different wall thickness.

The more work a chamber has to d...

TE
Answered by Tasnim E. Biology tutor
51917 Views

What is oxidative phosphorylation?

  1. EM
    Answered by Ernest M. Biology tutor
    4869 Views

What are different animal's cognitive limitations? How can we observe this in the wild?

There is obviously no black and white answer, but the study of behavioural ecology tackles this issue. Empirical studies in the animal's natural environment are more difficult but more rewarding to co...

CG
Answered by Chris G. Biology tutor
4930 Views

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