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Arthropods
OBJECTIVE:
You will be able to list the four groups of arthropods and give an example of each.
You will be able to explain the 4 things arthropods have in common.
Arthropod FactsAll Arthropod have 4
similar characteristics:
a. Jointed limbs that bend.
Phylum Arthropoda – “Jointed Appendages”
b. Segmented body – distinctive parts (head, thorax, cephalothorax, abdomen)
antennae
wings
claws
pincersLobsters have internal gills
Segments also include specialized parts: wings, antennae, gills, pincers, and claws
c.
An exoskeleton- a
hard outer
covering made of
chitin.
It protects the
animal.
Endoskeleton
Exoskeleton
*Needs to be shed as the animal grows
*exoskeleton is replaced in a process called molting
d. a well-developed nervous system (brain) to detect things with their senses.
2. Classes of Arthropods
a. Centipedes and
millipedes: have many segments
b. Crustaceans: shrimps, barnacles, crabs, and lobsters – have gills
c. Arachnids – spiders, scorpions, mites, ticks, daddy-long-legs
d. Insects – the largest group of arthropods and animals!!
3. Where do they live?
Everywhere:
On Land, in freshwater, in salt water and air
4. How do they get energy (food)?
Some are predators, some are scavengers, some are decomposers, some are parasites!!!
5. Levels of Cellular Organization
Arthropods have cells, tissue, organs and organ systems
Cool Facts:
• Arthropods have been around for about 600 million years
• Have to shed exoskeleton to grow (molting)
• 80 % of all animal life are arthropods
WHAT IS IT? Write down the group it belongs in:
1. Butterfly
WHAT IS IT? Write down the group it belongs in:
1. Butterfly
2. Lobster
WHAT IS IT? Write down the group it belongs in:
1. Butterfly
2. Lobster
3. Crab
WHAT IS IT? Write down the group it belongs in:
1. Butterfly
2. Lobster
3. Crab
4. Spider
WHAT IS IT? Write down the group it belongs in:
1. Butterfly
2. Lobster
3. Crab
4. Spider
5. Ant
WHAT IS IT? Write down the group it belongs in:
1. Butterfly
2. Lobster
3. Crab
4. Spider
5. Ant
6. Barnacle
WHAT IS IT? Write down the group it belongs in:
1. Butterfly
2. Lobster
3. Crab
4. Spider
5. Ant
6. Barnacle
7. Scorpion
WHAT IS IT? Write down the group it belongs in:
1. Butterfly
2. Lobster
3. Crab
4. Spider
5. Ant
6. Barnacle
7. Scorpion
8. Centipede
WHAT IS IT? Write down the group it belongs in:
1. Butterfly
2. Lobster
3. Crab
4. Spider
5. Ant
6. Barnacle
7. Scorpion
8. Centipede
9. Praying mantis
WHAT IS IT? Write down the group it belongs in:
1. Butterfly2. Lobster3. Crab4. Spider5. Ant6. Barnacle7. Scorpion8. Centipede9. Praying mantis10. Shrimp
What group do I belong to?
Centipede or millipede?
Crustacean?
Arachnid?
Insect?
ARTHROPODS~