1- Meet the Insects 1 Questions

1- Meet the Insects 1 Questions - MEET THE INSECTS 1 2 What...

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MEET THE INSECTS 1 2. What are the common names for the 5 largest orders of insects? Lepidoptera- Moths and butterflies Diptera- Flies Hemiptera- True Bugs Coleoptera- Beetles Hymenoptera- Wasps, bees and ants. 3. What is one major feature of each of the 5 major insect orders? Moths and Butterflies (Lepidoptera)- (Lepido=Scaled, Ptera=Wings) Flies (Diptera)- (Di=Two, Ptera=Wings) True Bugs (Hemiptera)- Have an arrangement of sucking mouthparts. Beetles (Coleoptera)- (Coleo=Sheath, Ptera=Wings) Wasps, Bees and Ants (Hymenoptera)- (Hymen=Membrane, Ptera=Wings) 6. Comparing life cycles of holo- and hemimetabolous insects, what are two major aspects that differ? Holometabolous go through 4 stages in a life cycle Hemimetabolous remain consistent and simply grow larger once emerging from the egg until adult form is reached. 7. Which type of life cycle do most insects have? What insect order has the most species? Most insects are holometabolous (Complete Metamorphosis) Largest insect group is Coleoptera (Beetles) MEET THE INSECTS 2 1. What did ozone have to do with arthropods (or any life) invading land? Ozone created a shield layer in the atmosphere that blocked harmful sun light, such as UV, making land habitable for the first time 6. How badly did the Permian extinction affect insects compared to other forms of life? About 95% of all ocean life disappeared. Only about half of all insect life was lost and those quickly rose again.
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9. Each of the 3 radiations in the 3 major eras of geologic time is correlated with a particular aspect of the insects themselves or their environment. What are the eras and their associated factors? 1 st radiation o Evolution of wings o Wing folding 2 nd radiation o Holometabolous became the most common type of development. 3 rd radiation o Radiation occurred alongside the development of flowering plants 11. What factors in the history of insects on earth and their biology seem to have contributed to the great diversity of insect species on earth today? (7 factors.) Diversity and plasticity of the cuticle Rapid evolution (small size. Short generation time) Holometabolous development First on land, first in flight Low extinction rates Co-evolution with flowering plants modularity MEET THE INSECTS 2. What are the names of the 4 sets of insect mouth parts? How have these been modified from basic chewing mouthparts (like a grasshopper) to make a sucking tube like a butterfly’s? Front Lip Mandible Maxilla Rear lip The butterfly’s mouth has a modified maxillae o One of the lobes was hugely expanded Extremely small mandibles Large palps on the rear lip,
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3. What are 2 ways insect eyes are fundamentally different than ours?
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