Annelida
Molluska
Arthropoda
Echinodermata
100
What are the domain and kingdom of the phylum Annelida?
Domain: Eukaryota Kingdom: Animalia
100
Provide an example of an animal in the Phylum Molluska.
Octopus, squid, clams, oysters, mussels, snail, slug.
100
What are the three main features of arthropods?
Segmented bodies, jointed appendages, tough exoskeletons.
100
Provide an example of an organism in the phylum echinodermata.
Sea star, brittle star, sand dollar, sea lilies, feather stars, sea urchin, sea cucumber, sea daisy
200
Define setae.
Tiny bristles (4 on each segment) that aid in earthworm movement.
200
What is the purpose of nephridia?
Simple organ used to excrete waste and maintain homeostasis.
200
What are the three segments of an arthropod?
Head, thorax, abdomen.
200
True or False: Echinoderms are both terrestrial and marine.
False; echinoderms are only found in marine environments.
300
Which of the following organism is NOT in the phylum Annelida? Earthworm, Planaria, Bobbitworm, Leech
Planaria
300
What is the purpose of the radula?
Rasping structure used to scrape food into its mouth. Some carnivorous mollusks use their radula to drill into other mollusks.
300
What is the cephalothorax?
Arthropods with only two major body segments have a cephalothorax, which is the fusion of the head and the thorax.
300
Discovered off the coast of New Zealand, the organisms have been difficult to study and classify because few have been found. They have tube feet surrounding a disc.
Sea daisy
400
Place these three organs of an earthworm's digestive system in order that soil will pass through them. Gizzard, pharynx, crop.
Pharynx, gizzard, crop
400
What are the three major classes in the phylum Molluska?
Gastropods, Bivalves, Cephalopods
400
When an arthropod molts, it sheds it exoskeleton because it is grows too large for it. How does this process happen?
Special glands in the skin secrete a fluid that softens the exoskeleton which will eventually crack under the pressure.
400
What is the system of fluid-filled, closed tubes that work together to enable echinoderms to move and get food.
Water vascular system
500
What are the three classes in the phylum Annelida?
Oligochaetes, polychaetes, Hirudinae
500
Provide one reason why a coelem allowed for adaptations in mollusks that were not possible for earlier organisms.
More complex tissues and organ. For example, circulatory system, digestive system, etc.
500
What are the three main methods of respiration in arthropods?
Gills: aquatic arthropods (lobster) Tracheal tubes: terrestrial arthropods (beetle) Book lungs: terrestrial arthropods (spider)
500
Echinoderms use these for to aid in feeding, locomotion, and respiration. For example, sea stars use them to pry open bivalves and also for creeping locomotion.
Tube feet.
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