Anatomy
Diet
Habitat
Reproduction
100
Ribbon worms are diploblastic or triploblastic?
Triploblastic
100
Most ribbon worms are carnivores, parasites, or herbivores?
Carnivores
100
Most species of ribbon worm are terrestrial, marine, or freshwater?
Marine
100
Fertilization occurs internally or externally?
Externally
200
Ribbon worms are bilaterally or radially symmetrical?
Bilateral
200
Do ribbon-worms digest extracellularly or intracellularly?
They have extracellular digestion.
200
Some ribbon worms have bright colors that help them blend in with their environment. What is the technical word for this sort of protective coloring?
Camouflage
200
What characteristic makes it easier for Platyhelminthes to find mates?
They're Hermaphrodites
300
What is the proboscis used for? (digging or feeding)
Feeding
300
(T/F) Do Tapeworms have a digestive system?
False.
300
Ribbon worms can be found in the burrows of other marine species like clams and crabs. What do you name this kind of relationship?
Commensalism
300
How do ribbon-worm reproduce asexually?
Regeneration from severed parts of the body.
400
What is the longest a ribbon worm can be? (1 ft, 10 ft, 100 ft)
100 ft (Lineus longissimus)
400
What is the scientific name of the roundworm?
Nematoda
400
Ribbon worms are prevalent in shallow, coastal ecosystems with a rich biodiversity, making them a common sight in these various marine environments. What are they called?
Intertidal zones or tide pools
400
Do marine worms have a budding stage?
Yes they do.
500
Does Platyhelminthes have a body cavity?
No, they are Acoelomate.
(An acoelomate is an animal that lacks a coelom, or formal body cavity.)
500
Name at least one piece of specific food marine worms eat.
Dead plankton, fish poop and goo products.
500
Many ribbon worms can be seen digging on the ocean floor's sandy or muddy sediments. What is the scientific name for this sort of habitat?
The benthic habitat.
500
Ribbon worms can reproduce both sexually and asexually. In sexual reproduction, ribbon worms release these reproductive cells into the water to fertilize eggs externally. What are they called?
Sperm and eggs (gametes)