Protect against predators trying to eat it.
Most of Mollusks protect themselves with help of shell . Shell is hard protective covering made up of CaCO3. Cephalopods are not protected by shell .
The function in a mollusks mantel is to help it's muchel move in the bod Located in th inside of the shell
Mollusks have hard shells to help protect them.
hide from predators
The membrane that surrounds the internal organs of mollusks is called the mantle. This tissue not only encloses the internal organs but also plays a crucial role in producing the mollusk's shell, if present. The mantle cavity, formed by the mantle, houses gills or lungs, facilitating respiration and excretion. Additionally, it is involved in the secretion of substances that help in shell formation and protection.
Scientists classify mollusks based on their anatomical features, such as their shell structure, foot type, and presence of a radula. They are typically categorized into classes such as Gastropoda (snails and slugs), Bivalvia (clams and mussels), and Cephalopoda (squid and octopus) based on these characteristics. Genetic analysis is also used to help determine the relationships between different mollusk species.
The characteristics that distinguish a round brown bug with a hard shell from other insects include its rounded shape, brown color, and the presence of a hard shell or exoskeleton. These features help to identify this particular bug as a member of a specific insect group, such as beetles or stink bugs.
We have chickens, but my brother looks after them. I know two nutrients that would help a chicken to lag an egg. Calcium and grit/crushed shell type thing. The grit helps make the shell hard :) Hope I helped x
Oysters are bivalve mollusks with an irregularly shaped shell, living attached to rocks, other shells, or on the ocean bottom. They have no means of locomotion, moving only when physically disturbed by other creatures or by wave action. The gills of an oyster filter tiny organisms from the surrounding water and collect food that the stomach digests. A thin membrane called a mantle covers the body and lines the inside of the shell. The adductor muscles and the hinge between the two halves of the external shell help keep the shell closed.Any of a number of bivalve mollusks with rough irregular shells. Several kinds are eaten (especially raw) as a delicacy and may be farmed for food or pearls.
A hard shell black bug can be distinguished from other insects in its habitat by its tough exoskeleton, dark coloration, and typically compact body shape. These characteristics help to identify the bug as a specific species within its environment.
A black bug with a hard shell can be distinguished from other insects in its habitat by its physical appearance, specifically its color and texture. The hard shell, known as an exoskeleton, provides protection and support for the bug's body. Additionally, the black coloration may serve as a form of camouflage or warning signal to predators. These characteristics help the bug stand out from other insects in its environment.
Arthropod means "jointed legs," because arthropods are covered with a hard skin ("crab shells" are the hard skin of crabs) and they move by flexing joints along their hard skin. When they grow, they have to grow inside their hard skin. But, if the skin is too tight, there's no space! By taking in air or water when their shell is still soft, arthropods can "pump up" and make a nice roomy shell to grow in. When they fill that shell up, they crawl out of it, and then pump up the soft skin underneath. The pumped up soft skin hardens into hard skin, and the arthropod is ready to keep growing.