External and Internal
what are the color changing cells on a squid called?
Its called the cromatophors
What are the stinging cells called?
Nematocysts
what kingdom is Algae from
Kingdom Protista
what does Arthro mean
it means jointed
What does the siphon do?
it is a tube that expels water for propulsion
What does polyp mean and what does Medusa mean
polyp means that the are in stationary form and Medusa which means free swimming form
How do they (the Algae) get energy
They use photosynthesis which means using sunlight to make they're own energy
what does pod mean
foot/appendages
what are the two classes
chelicerata and crustaceans
How do you know if it's a girl and a boy and what body part do u look at?
you look at the Gonad the boy is a white color but the world is a clear yellowish orange color
What is Mesoglea
It is the inside of the sea jellies its called the jelly filling
what does the blade mean
leaf like structure that captures light for photosynthesis
what is a major advantage for this phylum
having jointed appendages
what are the characteristics of Chelicerata
Chela-claw mouth for tearing & grinding their food
Lack antennae and mandible (jaw)
What do the Suction cups do?
They hold onto items or prey
What are the three classes
Anthozoa, Hydrozoans, and Scyphozoans
stem of the Algae
what are jointed appendages uses for the animal?
walking,eating,defense,swimming,breathing
what are Marine examples of class Chelicerata
horseshoe crab- blue blood used detecting bacteria for medicine
sea spiders
What is the difference between arms and tentacles
The difference between them is that there are 8 Arms and 2 tentacles the arms are covered in suction cups but the tentacles only have at the bottom the arms are shorter then the tentacles and the tentacles are longer then the arms
What are the types of symbiosis
Mutualism, Commensalism, and Parasitism
what does hold fast mean
anchor of the algae that helps attach to surfaces
what is the exoskeleton?
hard protective covering made of strong protein called chitin
what are the characteristics of the class Crustacea
crust or shell
have antennae, mandibles, swimmetes
compound/ complex eyes
gills