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An inactive form of the pathogen is injected into the body. The body detects the antigens on the surface of the pathyogen and this triggers the white blood cells (lymphocytes) to produce antibodies to com...

Individual neurons do not physically touch but are connected by synapses. These are small gaps between neurons. Signals or information are passed over the synapse between neurons, which allows information...

In humans, the pancreas can sometimes be described as an endocrine gland. This means it releases some of its substances staight into the bloodstream; this is the mechanism used to secrete...

IPMAT(C)

Interphase - normal cell growth (non mitotic)

Prophase

Metaphase

Anaphase

Telophase

Cytokinesis (cytoplasm division)

A reflex is an involuntary response to a sensory stimulus. The pathway of neurones involved in a reflex is known as a reflex arc. A reflex arc - such as quickly moving your hand away from a hot flame - in...