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Why are bivalves the preferred food of starfish?
Starfish are adapted to feed on bivalves due to their ability to pry open the shells with their tube feet and stomach evert and digest the soft tissues inside. Bivalves represent a food source that is easily accessible and provides a nutrient-rich meal for starfish.
What does a crayfish eye look like?
A crayfish eye is small and typically black in color. It has a compound structure with many tiny lenses that allow the crayfish to see movement and changes in light. They are located on stalks on either side of the crayfish's head.
What is the starfish metabolism?
Starfish have a simple metabolism that involves breaking down food to extract energy, similar to other animals. They mainly feed on mollusks, algae, and small fish, digesting their food in a sac-like stomach located in the central disc of their body. Waste is eliminated through an opening on the upper surface called the madreporite.
Is a starfish an herbivore?
No, a starfish is not an herbivore. Starfish are carnivorous animals that feed primarily on mollusks, crustaceans, and other small marine creatures. They use their tube feet to pry open the shells of their prey.
Why is the anterior part of a crayfish called the rostrum?
The anterior part of a crayfish is called the rostrum because it is a structure that protrudes from the head resembling a beak or snout, much like a rostrum on a ship. It helps the crayfish with sensory perception and sometimes functions in defense or capturing prey.
How many pyloric caeca does a starfish have?
The pyloric stomach is attached to the cardiac stomach. The pyloric stomach produces a digestive enzyme which breaks down food. After it breakes down food it distributes the food to each arm. It is also directly connected to the duodenum
A starfish does not have which body part?
a starfish is missing a few body parts like fins and tails
How do starfish turn their stomach inside out?
By pushing up through their mouths then the stomach opens like a mouth and gets the food.
How are skinks and geckos somewhat like a starfish?
They can regenerate body parts
What does a crayfish's heart do?
A crayfish's heart pumps hemolymph (the crayfish equivalent of blood) throughout its body, distributing oxygen and nutrients to its tissues and organs. The heart is a tubular structure located on the dorsal side of the crayfish, above the stomach.
Do starfish rip themselves apart on purpose?
Starfish do not rip themselves apart. people hearing somewhere that starfish regrow parts will actually very cruely cause damage on starfish by tearing them apart.The starfish parts do grow back anatomically,however long it takes. Thus damaged longer look like normal starfish the original piece being larger than the rest of starfish.
Where does jewel starfish live?
The Jewel Starfish lives in the shallow parts of the Indian Ocean and western Pacific Ocean. They like to be in rocky areas.
What is a feeding appendage on a Crayfish?
According to the book "The crayfish of Missouri" written by William L. Pflieger "The mouth parts of a crayfish consists of five parts of overlapping structures, each with its own role in crushing and shredding the food before it is ingested." "the largest of these structures are the heavy tooth-like mandibles." The link depicts a detailed image of the mouth parts.
How does a starfish defend itself?
A starfish is unable to bite because it lacks teeth. When a starfish eats, it lays on its pray and throughts up its stomach, similar to a fly, it then eats it stomach again with its prey.
What does the starfish looks like and what are its main body parts?
it look like a star but can swim and looks very Polk a dotty.
Is the crayfish most vulnerable to its enemies from the dorsal or ventral side why?
The dorsal side is its back, and the ventral side is its 'stomach'. The crayfish is vulnerable on its soft underbelly - the ventral side.
What is the name of that with teeth in its stomach?
Lobsters have their teeth in their stomach. They chew their food in their stomach, which is very close to their mouth, between three grinding surfaces that look like molar teeth called the "gastric mill".
