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The Pacinican corpuscle is a mechanical pressure receptor around the end of a sensory neurone. When pressure is detected, the receptor is compressed, opening ligand-gated sodium ion channels. This allows ...

I would firstly begin with looking at the key words in the question such as "describe" and "explain": whilst trying to focus on those words during the entirety of the answer. This ques...

Neuronal signals are often transmitted over a relatively short distance and over a short period of time. Due to pathways of neurons these signals can be incredibly specific, coming from one stimulus and b...

Due to natural variation due to mutations in their DNA, some giraffes in the population had longer necks. These longer necks enabled them to reach leaves higher up on the trees, which secured them a good ...

Bile is made in the liver and stored in the gall bladder. Bile emulsifies fatty acids and lipids, breaking large chains into smaller droplets. This increases the surface area for enzymes (lipase) to act o...