S
The "unicorn of the sea"
narwhal
_______________ is when fish swim together for safety and to conserve energy.
Schooling
At low tide, water collects in ______________, and here you will find crabs, seashells, starfish, and other creatures.
Tide pool
An animal without a backbone is called ________________.
an invertabrate
The brightest zone of the ocean that contains the most plant and animal life.
sunlight zone
manatees or dugongs
The oceans move in constant warm and cold water patterns called ____________.
currents
A shark's skeleton is made out of ________________.
cartilage
Some whales have plates made of keratin that help them filter their food. These plates are called _______.
baleen
Seals, sea lions, and walruses belong to the pinniped group. What does pinniped mean?
fin foot
tentacles
An octopus bleeds blue blood because of this element in its blood.
Copper
Give 2 examples of cnidarians.
jellyfish, anemones, coral
An octopus, cuttlefish, and squid are examples of cephalopods. What does "cephalopod" mean?
head-footed
Give 2 examples of echinoderms.
starfish, sand dollars, sea cucumbers, sea urchins
A mollusk's body includes the head, the feet, and a __________________ which includes the heart, respiratory, digestive, circulatory, and nervous systems.
visceral hump
Tell 2 benefits of blubber.
1. keep the animal warm
2. stores energy
3. helps the animal stay afloat
____________ is when an animal uses sound to find a location or food.
echolocation
When a huge area of ocean is covered with grass it is called a ______________
seagrass meadow
These toothed whales hunt in packs and are nicknamed the "Wolves of the Sea". They sleep with one eye open.
Orcas or Killer Whales
Tell the 5 major oceans of the world.
Pacific, Atlantic, Indian, Arctic, Southern
There are 6 zones in the oceans. Name 4 of them.
intertidal, sunlight, twilight, midnight, abyss, trench
When a creature can make its own light, it is called ______________________.
bioluminescent
This word means a creature's body temperature will be the same as their environment.
ectothermic
Tell 3 characteristics of mammals.
1. breathe with lungs
2. give birth to live young
3. hair follicles
4. warm-blooded
5. produce milk to feed their young