Aim We aim to dissect a locust in order to look more closely at the insects respiratory system to see which features it uses for gas exchange. The main organs that we aim to see are:
Resources: Edexcel A level Biology textbook As we can see this is how we prepared our dissection with the pins.
the middle photo is an example if a tracheae as when zoomed in the chitin spirals are visible. The final photo shows tracheoles which lack the spirals and is much smaller in size.
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