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~