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WorksheetsQuiz Practice Arthropods, Echinoderms, and Mollusks
Total questions: 19
Worksheet time: 10mins
What does echinodermata mean?
spiny skin
soft body
jointed foot
stinging nettle
What does arthropoda mean?
spiny skin
soft body
jointed foot
stinging nettle
What does mollusca mean?
spiny skin
soft body
jointed foot
stinging nettle
Echinoderms have this type of symmetry
asymmetry
radial symmetry
bilateral symmetry
gastrula symmetry
These animals use their large brains to control their tentacles, problem solve, and make decisions
gastropods
bivalves
cephalopods
arthropods
What is a radula used for?
scraping plant matter into the mouth aka feeding
attacking predators
reproduction - it allows animals to hand over packets of sperm
climbing trees
How do bivalves feed?
they are filter feeders
They eat plants
They eat meat
parasites
Arthropods have this type of symmetry
asymmetry
radial symmetry
bilateral symmetry
gastrula symmetry
Complete metamorphosis means
they turn into a different species
they change gender
they form a chrysalis/pupa and emerge with a completely different body shape
they get wings and/or reproductive organs but they don't really change their body shape
Which phylum undergoes metamorphosis?
arthropods
echinoderms
mollusks
annelids
Each individual produces ONLY eggs or ONLY sperm
gonochoristic
budding
parthenogeneisis
hermaphroditism
The first mollusk fossils appear in the
Pre-Cambrian Era
Cambrian Period
Triassic
Carboniferous
The first echinoderm and arthropod fossils appear in the
Pre-Cambrian Era
Cambrian Period
Triassic
Carboniferous
Click on the image to make it larger. How can you tell if a trait evolved separately in multiple phyla?
It will be at the beginning of the cladogram
It will be at the end of the cladogram
It will appear on multiple side branches but not on the main trunk
This never happens
Which phyla have an open circulatory system?
mollusks
echinoderms
arthropods
cnidarians
Which phyla have a closed circulatory system?
mollusks
porifera
arthropods
cnidarians
Which phyla have a water vascular system?
mollusks
echinoderms
arthropods
cnidarians
This phyla have a "hydrostatic skeleton" which basically means a bag of fluid like a water balloon
mollusks
echinoderms
arthropods
cnidaria
This phyla have an exoskeleton
mollusks
echinoderms
arthropods
cnidaria
