Essay about entomology

п»їUnit Two - Bug Evolution

Analyze Guide

Lesson Objectives

At the conclusion of the unit you should be in a position to:

Describe the four successive stages of insect advancement

Define ametabolous, hemimetabolous and holometabolous, and the similar conditions regarding side development Describe the two theories of insect wing progression and why it is difficult to clarify how pests evolved their wings.

Note: For this device of information, pay attention to the lecture, then read Chapters of sixteen and 2 . (p 18-50, p311-341) You really should read through the questions about this study information before beginning work on the address and readings. There are many fresh terms inside the readings. All of us will cover the insect instructions in device 3, although there will be recommendations to these people during your blood pressure measurements.

Thought Inquiries:

1 . Which types of insects would be the most different? How many total species might presently there be? (p 327) 2 . What are a few of the advantages wings and trip provide?

Evolutionary Stages


1 . Exactly what does " apterygote" mean?

2 . Describe this kind of stage and which pesky insects represent this group. Paleopterous

1 . Exactly what does " paleopterous" mean?

2 . Which two Pest Orders at the moment make up Paleoptera?

3. Illustrate this level and which in turn insects stand for this group. 4. Describe the difference between direct air travel musculature present in dragonflies plus the indirect musculature found in mayflies and other winged insects.

Side Flexon (Infraclass Neoptera)

1 ) What does " neopterous" mean?

2 . Illustrate this level and which insects symbolize this group. 3. Just how was this stage a benefit over the past stages? some. Why do some researchers opt to use the terms exopterygota and endopterygota to hemimetabola and holometabola?

Metamorphosis terms

Differentiate between ametabolous, hemimetabolous, and holometabolous.

Type of evolution


Pesky insects that do this




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