Sponges
Worms
Molluscs
Arthropods
Echinoderms
100
What type of sponge lives in a pineapple under the sea?
Spongebob Squarepants!
100
What are planarians?
"cross-eyed" worms
100
What is the meaning of mollusca?
"soft bodied"
100
What are the three basic body parts of an Arthropod?
The three basic body parts are the Abdomen, Thorax and Head. Another name for the thorax and head together is the Cephalothorax.
100
What type of symmetry are echinoderms?
Echinoderms are radially symmetrical.
200
What is the shape of sponges that allow them to filter nutrients from the water easily?
A cone shape.
200
What is the location of the dorsal nerve on a nematoda?
At the top of the worm. Dorsal meaning back.
200
Where do molluscs live?
Molluscs live in marine, freshwater and terrestrial habitates.
200
What is the name of the terrestrial arthropods' special organs located in the stomach called?
The malpighian tubules collect waste from the blood and transport them into the intestines where they mix with undigested food
200
What class are sea lilies and feather-stars?
Sea lilies and feather-stars are in the class crinoidea.
300
What is an osculum and it's difference from an ostia?
An osculum is the opening on the top of the sponge. An ostia is a tiny hole which lets water in to be filtered out through the osculum.
300
What is the distinct difference between the phylums platyhelminthes, annelida and nematoda?
platyhelminthes: Unsegmented worms annelida: segmented worms nematoda: round worms
300
What is the location of the gonad on a snail?
The gonads are at the uppermost part of the snail's body underneath the tip of the shell.
300
What is an arthropod's exoskeleton made of?
Arthropods' exoskeletons are made of chitin.
300
What do echinoderms generally respond to?
Generally echinoderms only respond to chemicals and lights.
400
What is the sponges' phylum name?
Phylum porifera.
400
What do land-dwelling annelids secrete?
Land-dwelling annelids secrete a thin protective coating called a cuticle to prevent them from drying out.
400
What is the heart type of the bivalvias?
Bivalvias or clams, mussels, and oysters have an open heart.
400
What are the benefits of an exoskeleton?
1. Protection from physical damage. 2. Waterproof (allows arthropods to live in dry environments) 3. Provides attachments surface for muscles
400
What is a podia and it's difference from an ampullae?
Podia are little sucker-like feet that connect the the ampullae. The ampullae are small bulbs inside the sea star's arm that where the water that passes down each arm reach once they've passed through the radial canals.
500
What are the stages of sponge digestion?
1. Food and water enter through the ostia. 2. The collar cells trap and digest the food. 3. Amoeboid cells transport food throughout the sponge.
500
Give four points as to how worms have evolved.
- annelida have segments separating by internal walls (septa) - worms have become circular - worm have developed more complex internal structures ->mouths separate from anuses ->gizzards, blood vessels, 5 hearts - from asexual to sexual reproducers - nematodas contrat their muscles for motility
500
Land snails use lungs to breathe.
What type of respiratory system organ do land snails use?
500
What are the three classes of Arthropods?
1. Arachnida (spiders) 2. Malacostraca (crayfish) 3. Insecta (grasshopper)
500
Describe the nervous system of a sea star.
Sea Stars have a central nerve ring that surrounds the stomach. The nerve ring connects to the radial nerves that extend into and control each arm.
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