Molluscs Characteristics
What are some examples of molluscs?
Clam, Snail, Octopus, Muscles.
What are some examples of Eumetazoas?
Leeches, Tapeworms, parasitic earthworm and Earthworms.
What do mollusca eat?
Except for cephalopods, which are omnivores, they are mostly herbivores.
How do molluscs reproduce?
Sexually
Molluscs role in ecosystem.
Helping to shape aquatic bottom ecosystems while also providing habitat, protection, and food for a diverse range of other species.
Where are these animals mainly located?
Marine/Water
What are the 3 groups of worms?
segmented worms, flatworms, roundworms
What do Eumetazoans eats?
Worms eat organic matter. And anything that has been living eventually becomes worm food, this includes plants and any other creatures.
How do snail and slugs fertilize their eggs? How many eggs are laid at a time?
Some snails and slugs are hermaphrodites, which means they still must mate to fertilize their eggs, but their eggs are laid singly or in large groups.
How can they help scientists on past issues?
Because they are huge calcareous animals with an extensive fossil record, they can provide crucial information on prior climate events and oceanic changes.
What are the 8 Classes?
Gastropoda, Bivalvia (Pelecypoda), Cephalopoda, Chitons (Polyplacophora), Monoplacophora, Aplacophora, Scaphopoda and Caudofoveata.
How can you identify a flatworm?
Generally flat with soft bodies. Some flatworms are parasitic, which means they live on or inside their host. Flatworms have no actual body cavity, although they are symmetrical on all sides.
What do Cephalopods eat and how do they get them?
Eat fish and invertebrates like octopi and crabs. They inject poison into their prey and suck out what they want to consume.
How do roundworms reproduce?
Adult roundworms lay their eggs in the small intestine of dogs, which are subsequently transported through their own excrement. Roundworms have a 4-6 week incubation period, which means it can take up to one month between swallowing the roundworm and passing eggs.
How are roundworms important with ecology?
Bacteria, fungus, protozoans and decomposing organic debris are the most common sources of food for roundworms. Plants, vertebrates, and invertebrates are all possible hosts for parasitic worms. Humans are hosts for a variety of organisms that can parasitise us.
What is the biggest class of the species?
Gastropoda
How can you identify a segmented worm?
Separated into segments, each of which is almost similar inside and outwardly. The segments of segmented worms are symmetrical on both sides. Their bodies are made up of a head, a tail, and a central area with multiple repetitive segments. Septa divide each section from the other
Examples of foods that molluscs eat.
They eat plants that are located in the water like seaweed.
How do flatworms reproduce?
They begin their lives as eggs that are dispersed in the feces of birds like oystercatchers.
How are flatworms important with ecology?
They assist farmers by boosting soil fertility, allowing for a better crop yield.. Platyhelminthes are an important component of the aquatic food chain.
How many body parts do molluscs have? What are they?
They have 4 body parts and they include the head, visceral mass, muscular foot, and mantle.
How can you identify a roundworm?
Roundworms contain internal organs and a body cavity. Roundworms have a basic brain and a simple nervous system. Roundworms are often parasitic which means they go into many hosts and nest.
Examples of foods that Eumetazoans eat.
→ Urban Worm Chow
→ Spent Coffee Grounds
→ Banana Peels
→ Apple Cores
→ Pre-Composted Manures
→ Vegetable Waste
How do segmented worms reproduce?
Earthworms' fertilized eggs are kept in a protective cocoon after they mate. Hatchling worms emerge from the ground and burrow into the earth, where they evolve into juvenile and mature worms.
How are segmented worms important in ecology?
They are important in the decomposing of dead plants and animals as well as decaying organic matter.