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How do vaccinations work? Relating to humoral immunity and the secondary immune response.

The body has both humoral and cell mediated immunity. A vaccination involves injecting a patient with inert (Inactivated) or dead material from a pathogen, be that a bacterium or a virus. Once injected into ...
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Answered by Sophie J. • Biology tutor
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Describe two ethical issues related to Milgram's study of obedience

Deception was used in order to carry out the experiment. Participants were unaware of the confederates in the experiment and that they would always be assigned as a teacher and the confederate would be assig...
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Answered by Dristi M. • Psychology tutor
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What are the strengths and weaknesses of representative democracy?

Representative democracy allows for complex decisions to be made by a small, educated elected group at an efficient pace making it the only practical democratic system in a modern state. It also allows for t...
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Describe the transmission of a nerve impulse across a synapse.

An action potential arrives at a presynaptic neurone, which causes calcium ion channels to open. Calcium ions enter the presynaptic knob, which causes synaptic vesicles containing neurotransmitter to detach ...
Answered by • Biology tutor
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What is the difference between the Via Positiva and the Via Negativa?

The Via Negative (also known as the apophatic way) is the idea that we can only state things about God by stating what he is not. Positive sentences about God such as "God is Good" cannot be valid ...
Answered by • Religious Studies tutor
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