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Plankton
Porifera, Cnidaria, Worms
Mollusks, Echinoderms, Arthropods
Fish and Sharks
Marine Mammals
100
The primary source of energy for all food chains is this.
What is the sun?
100
These are the stinging cells of cnidarians.
What are nematocysts?
100
This structure secretes the shell in most mollusks.
What is the mantle?
100
This structure enables a fish or shark to detect vibrations in the water.
What is the lateral line?
100
This is what we call a group of cetaceans.
What is a pod?
200
Algae and diatoms are all examples of what type of plankton?
What is phytoplankton?
200
This is the name of the appendage a sandworm uses to stab prey.
What is a proboscis?
200
This structure is used for filter feeding in clams and jet propulsion in squid.
What is the siphon?
200
This type of tail shape provides the fastest speed in pelagic fishes.
What is lunate (crescent)?
200
This is what whales use to filter feed.
What is baleen?
300
A reduction in this gas would occur if all of the phytoplankton disappeared.
What is oxygen?
300
This substance makes up the skeleton of a coral reef.
What is calcium carbonate?
300
This bivalve has "eyes."
What is a scallop?
300
Theses two types of scales can be used to determine the age of a fish.
What are cycloid and ctenoid?
300
This pinniped has external ears.
What is a sea lion?
400
This is what causes a brown tide.
What is an algal bloom?
400
A cnidarian has this type of digestive tract.
What is two-way?
400
Sea stars typically feed on these organisms.
What are bivalves?
400
A fish has a ____________ to maintain buoyancy and a shark has a ___________.
What is swim bladder; fatty liver?
400
Mammals utilize __________ fertilization and _____________ development.
What is internal; internal?
500
Zooxanthellae is a phytoplankton that provides these materials for corals to carry out respiration.
What is glucose and oxygen?
500
This is why sponges are considered the most simple animals.
What is they lack a high degree of specialized cells?
500
This is the process by which a sea cucumber will expel its insides.
What is evisceration?
500
This pinniped has limbs that are better adapted for walking than swimming.
What is a sea lion?