Phylum Echinodermata
Phylum Mollusca
Phylum Arhtropoda
Adaptations
Miscellaneous
100
Name 3 examples of echinoderms.
Sea urchin, sea cucumber, sea star, sand dollar
100
Name 3 mollusks.
Snails, slugs, clams, oysters, octopus, squid, cuttlefish, etc.
100
Name the 5 classes of arthropods and an organism example from each.
Arachnids - Spiders Insects - Dragon Fly Crustacean - Lobster Diplopod - Millipede Chilopod - Centipede
100
Fill in the blank. Arthropods have an amazing ability to ________________ or change based on their environment.
Adapt
100
Define exoskeleton.
An external skeleton. Arhtropods have exoskeletons.
200
What kind of symmetry do echinoderms have?
Radial Symmetry
200
Identify the 3 classes of mollusks and an organism from each class.
Gastropod - Snails Bivalves - Clam Cephalopods- Octopus
200
How many legs do crustaceans, arachnids, and insects have?
Crustaceans - 10 or more Arachnids - 8 legs Insects - 6 legs
200
Why do organisms adapt to their environment?
They adapt to increase their chance of survival.
200
What is a dichotomous key used for?
These keys are used to identify an organism.
300
Define regeneration.
The process where an organism regrows its missing parts.
300
Think "Plants and Snails" gizmo. What do the snails give off and what do snails take in?
Snails give off CO2 (carbon dioxide) and take in O2 (oxygen).
300
How many body regions do crustaceans, arachnids and insects have?
Crustaceans - 2 body regions Arachnids - 2 body regions Insects - 3 body regions
300
Describe how echinoderms have adapted to use their spines.
They use their spines for protection from predators. They use their spinse for movement. They also use their spines to maneuver between rocks.
300
Define appendage.
A limb on a creature.
400
Identify two parts on the external anatomy of a sea star.
Spines, skin gills, seive plate (where water enters), eyespots, tube feet
400
What characteristics do all mollusks share?
They are all soft bodied, invertebrate animals that use a foot to move.
400
How are bees beneficial and harmful?
Beneficial - Bees provide honey and pollinate plants Harmful - Can sting and nest in homes
400
Compare how mollusks have adapted to move.
They all move using a foot organ. Bivalves have a single foot that they use to pull themself through the soil. Gastropods have a single, broad foot with mucus that they use to move over land. Cephalopods have tentacles that help them move and swim through the water.
400
Define metamorphosis.
The changes through the stages in a life cycle of an organism.
500
Explain the hydrovascular system in a sea star. (Also known as the water vascular system)
Water enters through the sieve plate, then travels through a series of canals and eventually out the tube feet on the ventral side of the sea star. This allows them to move with their tube feet.
500
Explain how a mussel is adapted to life on a rocky shore.
Mussels anchor themselves to rocks so they won't be washed away. They stay closed until the water covers them and then they open to feed.
500
What is the difference between camouflage and mimicry?
Camouflage is when you blend into your surroundings and mimicry is when you copy the pattern or behavior of another organism. Both are adaptations that increase chance for survival.
500
What are some examples of arthropod adaptations?
Wings for flight, jointed appendages for movement, compound eyes for seeing images, antennae for sensing their environment, fangs or mandibles for grasping prey.
500
Why are echinoderms, mollusks, and arthropods more complex than sponges?
They have organs and systems that help them to obtain and digest food, to move, and to see.
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