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1. thin diffusion distance- 1 cell thick 2. large surface area- alveoli 3. large concentration gradient- lots of blood vessels 4. moist

Motor neurone - carry info from the central nervous system to the effector cells

Sensory neurones - carry info from sensory receptors to the CNS

relay neurones - carry signals from one part ...

The structure of plant and animal cells is generally similar since they are both eukaryotic cells. They contain many of the same organelles including but not limited to the nucleus, mitochondria and the e...

• "Explain" - so must give reasons why something is happening - Increased blood flow - what does this mean? Means more blood reaches the muscles -What does the blood carry (...

It's easy think about how they are different if you think about their different functions and environments.

Let's think about the difference between the walls. Animal cells have a thin cell membran...