Arthropoda and molluscs have open circulatory systems - meaning haemolymph (Their equivalent to blood) directly bathes the tissue, and isn't enclosed in blood vessels, as seen in a closed blood system, as in humans for example.
<span>Aspirin/Paracetamol/Ibuprofen are all extremely toxic to cats when an incorrect dose is given. Whilst common medication can be beneficial to some animals when given in the correct dose, it can also be highly dangerous. For example, one normal-strength tablet of paracetamol is highly toxic for a cat, and another just a day later will prove fatal.</span><span />
The component is called 'resting metabolic rate. It operates when the body is at complete rest. It can also be called basal metabolism.
<span>A shelled, water-retaining egg with four membranes that enables reptiles, birds, and egg-laying mammals to complete their life cycles on dry land</span>