Phylum
What phylum is a crab?
Arthropoda
Two major physical challenges of the ocean environment
Salinity and pressure
Sunlight reaches about ___ m
1000
Name 3 key traits of a Porifera
Asymmetry, only have cells, Filter feeders
What phylum is a Brittle Star?
Echinodermata
What is Diffusion?
The movement of molecules from high to low concentrations
Why does the amount of sunlight reach limit photosynthesis?
Most organisms need sunlight to feed
Radial symmetry, cnidocytes, centrally located mouth
What phylum is an Oyster?
Mollusca
What is Osmosis?
The diffusion of water
What is one deep sea adaptation?
Large eyes
name 3 key traits of a Ctenophora
Cilliary combs, sticky cells, some have tentacles, some dont
What phylum is a Red Bearded Sponge?
Porifera
Active transport differs because -
it moves molecules from low to high concentrations + they need it to remove salt
What does Viscosity mean?
Substance resistance to flow
Name 3 Key traits of a Mollusca
What phylum is a Box Jelly Fish?
Cnidaria
Osmoregulator and Osmoconformer
Controls amount of salt in body
Does control amount of salt in body
As salinity increases, viscosity ____
Increases
name 3 key traits of a Arthropoda
Segmented body, jointed appendages, exoskeleton