All organisms need ATP to live. Respiration is only around 40 per cent efficient. As animals respire, heat is also released. In birds and mammals, this heat is distributed around the body by the ...

Cellular respiration and transport - Edexcel The ... Sample exam questions - exchange and transport in animals - Edexcel Understanding how to approach exam questions helps to boost exam performance.

Plants and animals have many similarities when it comes to what they need to survive. Both need water and air. We often think of animals using oxygen and glucose for cellular respiration and producing ...