Most insects have two pairs of wings, but some do not. 2. distinguish between the orders of insects using characteristics unique to each group. 3. understand how specific body structures help insects survive. 4. understand the life cycle of insects, including complete and incomplete metamporphosis. Insects respire through tiny openings called spiracles.
Air passes in and out of the spiracles to and from a network of tubes in the insect's abdomen.
A Madagascar Hissing Cockroach can push air through these spiracles quickly, making a hissing noise to scare off potential predators. 5. utilize a variety of methods to collect insects . Gather road kills or catch live insects to put in a killing jar. This can be made using a wide-mouthed jar with a lid and adding a paper towel soaked in fingernail polish remover containing acetone. Always label the insects with the collector's name, location and date.