Arthropoda 2 Flashcards
1
Q
Myriapoda
A
- Many Foot
- Segments Visible
- Serial Homology - Repeating legs on segments
- One pair of antenna
- Legs are uniramous (Unbranched)
2
Q
Chilopoda
A
- One pair of legs per segment
- Carnivorous
- Appendages of the first segment modified to form
venom claws
3
Q
Diplopoda
A
- Two pairs of legs per segment
- Non-Venomous defenses
- Detritivores
4
Q
Hexapoda
A
- Six legs
- Uniramous Legs
- 3 Tagmenta (Head, Thorax, Abdomen)
- Abdominal appendages are very small or absent
5
Q
Class Insecta
A
- Coevolved with plants
- Adapted to nearly every terrestrial habitat
- Most diverse group in animal kingdom
6
Q
Why are insects such a diverse group ?
A
- Evolution for flights (Dispersal)
7
Q
Major insect evolutionary innovations
A
- Flight
- Wing Folding
8
Q
Zygentoma
A
- small and Lack wings
-Ametabolous - Common in homes
- Direct development
9
Q
Paleoptera (Division)
A
- Wings develop on the outside of the body
- Hemimetabolous
- Nymphs lack wings and sex organs
10
Q
Odonata (Order)
A
- Larger slender bodies with two pairs of long narrow wings
- Carnivores
- Hemimetabolous
- Compounds eyes with individual units called ommatidia
11
Q
Neoptera (Division)
A
- Can fold their wings flat in their back
12
Q
Winged insects with hemimetabolous development
A
- Insects whose wings initiate development on the outside of the body
-Undergo Hemimetabolous
13
Q
(Orthoptera) Order
A
- Chewing mouthparts
- Herbivores
- Enlarged hindlegs for jumping
-Crickets are long antennae - “Fly and scraper” structure on their front wings that they use to generate loud sounds
14
Q
Blattodea (Order)
A
- Rely on cellulose digesting bacteria in their gut to break down wood
- Eat portion of gut upon molting to replace bacteria
- Eusocial - Live in caste style colony
15
Q
Hemiptera (Order)
A
- Three distinct groups of insects (True bug, hoppers, and aphids)
-Piercing and sucking mouthparts - Odorous glands
16
Q
Mantodea (Order)
A
- Modified raptorial forelimbs for prey capture
- ambush predators
- Sexual cannibalism
17
Q
Phasmida (Order)
A
- Bodies elongated and sometimes flattened
- Herbivores
18
Q
Winged insects with holometabolous development
A
- Wings develop on the inside of the body
- Holometabolous
19
Q
Coleoptera (Order)
A
- Most diverse group of insects
- First pair of wings modified to elytra (Protect flying wings)
- Mouthparts for biting and chewing
20
Q
Lepidoptera (Order)
A
- Wings covered by minute scales
- Long coiled mouthparts for feeding on nectar
21
Q
Diptera (Order)
A
- Single pair of wings
- Hindwings modified to inconspicuous balancers (Halteres)
22
Q
Hymenoptera (Order)
A
- Most are parasitoids
-Narrow wings - Mouthparts for lapping and biting
- Ovipositor sometimes modified into stinger, piercer or saw
- Both social solitary species
- Important pollinators
23
Q
What are some adaptations of class Insecta to terrestrial environments ?
A
- Stronger appendages and support systems to overcome reduced density of air
- internal fertilization to prevent desiccation of eggs
