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Explain how vaccinations can help to prevent infection

Antibodies are rapidly produced by white blood cells in response to the vaccination, and these antibodies kill the pathogens. Memory cells are produced in order to combat further infection more rapidly via r...
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Answered by Anna H. • Biology tutor
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Name the four stages of mitosis

Interphase Prophase Metaphase Anaphase
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Answered by Roisin G. • Biology tutor
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How does blood flow through the heart?

The heart is the muscle responsible for pumping blood around the body. It has four chambers: an atrium and ventricle on the left, and an atrium and ventricle on the right. Atrioventricular and semilunar valv...
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Answered by Moriom B. • Biology tutor
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What is the difference between mitosis and meiosis?

The main difference is that meiosis halves the number of chromosomes (2n-->n) whereas mitosis does not. (2n-->2n) Mitosis is simply the division of the nucleus, creating to genetically identical daught...
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Answered by Mara F. • Biology tutor
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Give advantages and disadvantages of treating patients with an artificial heart.

advantages: it's useful where no other treatment is available or when the patient's near to death it extends a lifespan disadvantages: there's a low success rate the device has limited lifespan or battery wi...
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Answered by Sally W. • Biology tutor
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