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Biology
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What is a synapse?

a junction between 2 neurones 

IG
Answered by India G. Biology tutor
2524 Views

What is homeostasis? Can you use a couple of examples to explain the difference between positive vs negative feedback?

DEFINITION   Homeostasis = the maintenance of a constant internal environment Every process in the body that occurs in everyday life, such as keeping the heart beating, changing fr...

JT
Answered by Jasmine T. Biology tutor
6883 Views

What are the electrical changes in an axon that occur during an Action Potential?

  • The resting potential of the axon membrane is around -70mV, where it is more negative on the outside of the axon than the inside.

  • A stimulation causes Na+ (sodium ions) channel...

BF
Answered by Belia F. Biology tutor
3920 Views

How does the heart pump blood around the body

The heart is divided into four chambers: the right atrium, right ventricle, left atrium and left ventricle [insert diagram]. The right side of the heart pumps blood to the lungs. The left side of the hear...

RL
Answered by Rosanna L. Biology tutor
8443 Views

How are nerve cells adapted to their function?

To answer this question we first need to understand what the function of a nerve cell, or neurone, is. Neurons need to be able to rapidly transmit electrical impulses along their length. They also need to...

CH
Answered by Christian H. Biology tutor
119892 Views

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