Starfish

In crown of thorns starfish, there is no significant size difference between males and females; both sexes can reach similar sizes. Typically, adult crown of thorns starfish can grow up to 40 centimeters (about 16 inches) in diameter. Their size can vary based on environmental conditions and availability of food rather than sex.

Their life expectancy is not certain but Crown of Thorns have lived up to 8 years in an aquarium.

Yes, tiger sharks are known to eat a variety of prey, including starfish. They have a diverse diet that consists of fish, seals, sea turtles, and invertebrates, and their opportunistic feeding behavior allows them to consume whatever is available in their environment, including starfish. However, starfish are not a primary food source for tiger sharks.

A kneeling cushion is a supportive pad designed to provide comfort while kneeling, often used in activities like gardening, cleaning, or during certain exercises. It typically features a soft, padded surface to reduce pressure on the knees and may also have a handle for easy transport. Some kneeling cushions are designed with additional features like waterproof materials or ergonomic shapes to enhance usability. Overall, they help prevent discomfort and strain during extended periods of kneeling.

light, temperature, sailinity, pH, tidal cycles, currents, waves, wind are all ABIOTIC factors as they are non-living.

Biotic factors are all those factors that are living for example the relationship between organisms:

Predator-prey: where one organism eats another

Parasitism: where one organism (parasite) lives off another organism (host) and it is detrimental to the host

Commensalism: one organism benefits but the other organism is neither benefited or harmed

Mutualism: two organisms in a relationship where both benefit but neither are harmed

Allelopathy: one species exerts a chemical that acts like a pesticide and prevents any other species from growing around it

starfish are of many kinds....many sub-species are found of it...many of them change color in small scale to have simple camouflage but about 26 sub-species are very expert in changing colors.

Sea stars also known as starfish, are in the class Asteroidea. They belong to the phylum Echinodermata. Also in this phylum are sea urchins, sand dollars and sea cucumbers.

The Crown of Horns looks like a large, solid, gold Rock.

the leg will grow back

that's exact;y what my science hw asks...but i cant find it anywhere. sorry

oxygen soil sunlight water temperature

oral

Because or it's unquie shape and because mostly they are not found so when you see one you dont know what it is some types of starfish are now rare because of people catching them and using the as decorations.

When the red-knobbed starfish is young, it will eat algae, but as it grows it will eat soft corals, sponges, tubeworms, clams, starfish and other invertebrates.

nekton

Yes in the new testament , Jesus was crowned with thorns.

Animals with a skeleton of bone are called vertebrates. This category includes fish, amphibians, reptiles, birds, mammals, primates, rodents and marsupials

well they are but they don't have a shell

Echinoderms are born as zooplankton. There is no parental care.

i also want to know....sorry can't help u

Echinoderms are not 'grouped' with the starfish and sea urchins. Rather echinoderms are the animal phylum to which starfish and sea urchins belong to. Star fish belong to the class Asteroidea and sea urchins belong to the class Echinoidea. There are other echinoderm classes such as sea cucumbers (Holothuroidea) and brittle stars (Ophiuroidea) are two of them. All these classes fall under the Echinoderm phylum.

All echinoderms share some distinguishing features:

1. Their adult bodies are arranged in five equal parts

2. They have an internal calcium carbonate skeleton

3. They have a mouth, but no head or brain (they do have a nervous system)

4. They can posses tube feet for locomotion

5. They posses a internal hydraulic system consisting of tubes of sea water to regulate the body's internal pressure and to control movement feeding and respiration.

A starfish actually does not have taste buds. They do have eyes that are located on the ends of their arms. Their mouth is located under their body.