Ocean Zone
What do you call creatures that live on the ocean floor?
Benthic
What is the study of marine biology?
marine organisms, their behaviors and interactions with the environment
Which ocean is located between the Americas and Europe/Africa?
Atlantic
What is the function of the holdfast in seaweed?
attach to the substrate (ocean floor, rocks)
Where is the mouth located on a jelly?
on the underside, surrounded by tentacles
Where is the pelagic/open ocean zone located?
Beyond the continental shelf, over the deep waters
What is the classification of all plankton based on movement?
drifters that move by floating in the ocean currents
Which ocean lies between Asia/Australia and the Americas?
Pacific
How do seaweeds take in water and nutrients without roots?
water and nutrients diffuse into the seaweed
Which structures contain cnidocytes in jellyfish?
the tentacles
Where is the photic zone located?
the sunlit upper layer of the ocean
What do we call zooplankton that only spend part of their life cycle as plankton?
meroplankton
Which ocean surrounds the North Pole?
Arctic
The cownose ray feeds on clams and mussels. What type of consumer is it?
carnivore
Why do large reef-building corals only grow in tropical waters?
plentiful sunlight
Where is the aphotic zone located?
the deep ocean below where sunlight can reach
Why are plankton important to the ocean ecosystem?
Which ocean surrounds Antarctica?
Southern
Use the food chain: phytoplankton → clams → cownose ray → hammerhead shark. What is the most likely direct impact of a reduced hammerhead shark population?
increase in the cownose ray population
What is the main cause of coral bleaching?
warmer ocean temperatures cause corals to lose algae
Why aren’t marine phytoplankton found in deep ocean zones?
There is no sunlight.
What is the function of spicules in a sponge?
support for the sponge body
Which Ocean is between Afric, Asia, and Australia
Indian
What is the job of collar cells (choanocytes) in sponges?
create a current through the sponge and capture food
What is a major structural difference between crayfish and sea stars?
crayfish have a segmented body, while sea stars do not