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Outline the importance of the junctions between neurones in the functioning of the nervous system

DEFINE: Key words What is a junction, what is a neurone and what is the nervous system? So, the nervous system connects all the nerve cells and fibres which transmit nerve impulses from one part of the body ...
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Answered by Natasha K. • Biology tutor
7489 Views

What is negative feedback?

Firstly you have a change away from optimum conditions, for instance a decrease in internal body temperature, which is detected by a receptor. The receptor relays this infromation down the communication path...
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Answered by Josephine B. • Biology tutor
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Comparing Methane and Water's Properties

This question is quite chemical, and it's important to draw a diagram when answering it during the exam for both yourself and the marker to show a complete understanding of what is going on. Water is made of...
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Answered by Adedayo S. • Biology tutor
33937 Views

What is the difference between mitosis and meiosis?

Mitosis is used for growth, repair and asexual reproduction whereas meiosis results in the production of gametes needed for sexual reproduction. Mitosis creates 2 cells with diploid chromosomes but meiosis f...
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Answered by Collette M. • Biology tutor
4879 Views

What is natural selection?

A process by which organisms which are most suited to the environment that they live in are more likely to survive and therefore to reproduce, passing the characteristics which made them most suitable on to ...
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Answered by George A. • Biology tutor
3630 Views