Symbiosis
Name two things animals need to survive.
Food, shelter, water, air, space, protection
Just like snakes shed their skin, crustaceans ____ their exoskeletons.
Molt
True or False: Whales are mammals.
True: Whales are marine mammals
Name one animal you can find on the sandy shore.
Crabs, birds, sea turtles, seals, sea lions, worms, insects, rays, sharks, clams, barnacles, sand dollars
True or False:
Migrating whales don't benefit from having barnacles on their backs.
True: Whales get no benefit or harm from the barnacles.
Name one thing an animal may rely on another animal for.
Food, shelter, protection, cleaning, transportation
Name one characteristic of a crustacean.
Jointed limbs, antennae, pair of eyes, gills, hard exoskeleton
Name a larger animal, other than whales, that you may find in the open ocean.
Sharks, dolphins, manta rays
What is one benefit of living on the sandy shore?
Living in the sand, access to the beach for animals who can come on land, blending in (if you’re sandy colored)
How do spider crabs benefit from being covered in algae?
Algae helps younger spider crabs camouflage into the sand and rock of the ocean floor.
What does symbiosis mean?
A type of relationship in which both creatures benefit in some way from living with each other.
True or False:
Adult spider crabs are hunters that use their claws to capture prey.
False: Spider crabs are slow-moving scavengers. They look for dead animals or leftover scraps along the seafloor.
Name a smaller animal, other than barnacles, that you may find in the open ocean.
Small fish, jellies, plankton
What is one challenge of living on the sandy shore?
Sun exposure, wave action, human activity, not many places to hide if you can’t camouflage
What does commensalism mean?
A type of relationship in which one animal benefits and the other gets no benefit or harm.
True or False:
Symbiotic relationships can only happen in the ocean.
False: An example of symbiosis on land is bees and flowers.
Name a type of crustacean other than crabs.
Lobsters, shrimp, barnacles, krill
Name one characteristic of mammals.
Hair, warm blooded, breathe air, live birth
True or False:
Snapping shrimp get their name because they can snap their claws quickly.
True: Snapping shrimp snap their claws back, creating a bubble that stuns their prey
What is the snapping/pistol shrimp's weakness?
It's completely blind
Name all 3 dynamic duos we learned about.
Spider crabs and algae
Whales and barnacles
Snapping/pistol shrimp and gobys
What is a benefit and challenge of living on the ocean floor?
Benefits: Lots of space, good visibility
Challenges: Depth, cold temperature, few places to hide
Many whales, like blue and gray whales, eat tiny ____.
Krill
How do snapping shrimp and goby communicate?
The shrimp uses its antennae to keep contact with the goby. If there is danger, the goby will whack the shrimp with its tail.
How does the goby benefit from being roommates with the snapping shrimp?
It gets a nice shelter built by the snapping shrimp.