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Starfish

Also known as sea stars, these echinoderms are 2,000 species strong and found in seas and oceans all over the world. They can vary in size from less than half an inch to more than four feet across.

1,388 Questions

What phylum and class do the moth belong to?

Moths belong to the phylum Arthropoda and the class Insecta.

What is the life span of the Crown of Thorns Starfish?

Crown of Thorns Starfish can live for up to 10 years in the wild.

How do the starfish and other plants in the beach ecosystem interconnect?

Starfish are predators that feed on mussels and other shellfish in the beach ecosystem, helping to control their populations. Other plants in the ecosystem provide shelter and food for small organisms that the starfish may also feed on. This interconnected relationship helps maintain a balance within the ecosystem.

What is a animal-like protist?

Animal-like protists are called protozoa. Protozoaare single-celled eukaryotes that share some traits with animals. Like animals, they can move, and they are heterotrophs.

One celled animal like protists?

Examples of one-celled animal-like protists include amoebas, paramecia, and trypanosomes. These protists are eukaryotic organisms that possess animal-like characteristics such as mobility and heterotrophic feeding behavior. They can be found in various aquatic environments and play important roles in nutrient cycling and food chains.

How can you tell if a protist is a producer?

Protists that are producers typically contain chloroplasts, allowing them to photosynthesize and produce their own food using sunlight, water, and carbon dioxide. These protists are usually green in color due to the presence of chlorophyll. Additionally, they release oxygen as a byproduct of photosynthesis.

Would a spherical protist or a cylindrical protist have a higher surface area to volume ratio?

A cylindrical protist has a higher surface are to volume ratio. This is because of the physical properties of spheres (some rather complicated math proves that spheres hold the most volume for their area).

Is the starfish a carnivore herbivore or omnivore?

Carnivore

Diet

Common starfish eat bivalves, polychaete worms, small crustaceans and other echinoderms (the group which includes urchins and starfish).

Are starfish omnivores?

No, starfish are not omnivores. They are primarily carnivores, feeding on small organisms like bivalves, barnacles, and snails. They use their tube feet to pry open the shells of their prey and then push their stomachs outside their bodies to digest their food.

What do ALL protists possess?

All protists possess a eukaryotic cell structure, meaning they have a nucleus and other membrane-bound organelles. They are unicellular, though some can form colonies or be multicellular. Protists exhibit a wide range of nutritional modes and can be autotrophic, heterotrophic, or mixotrophic.

What species are starfish?

Starfish are Echinoderms, and there are many species in several orders.

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How do protists defend themselves?

Protists defend themselves through various mechanisms such as producing toxins, forming protective shells or cysts, using flagella to escape predators, and engulfing or expelling invaders through phagocytosis. Some protists also have mutualistic relationships with other organisms for protection.

How do starfish stay on the rocks?

The starfish takes in water into the tube feet, (expanding the tube feet) the water is then forced out of the tube feet, (contracting the tube feet) making it able to grab onto the object.

How does respiration occur in the starfish?

Respiration - The starfish has a water vascular system in which the repiratory exchange between oxygen and carbon dioxide occurs. * The tube feet of the starfish act like gills. The Oxygen enters the water vascular system through the tube feet as the carbon dioxide exits the body. http://intro.bio.umb.edu/111-112/112s99Lect/bodyplans/starfish.html

How do protists synthesis?

Protists synthesize their own food through a process called photosynthesis or by consuming other organisms for nutrients. They can have various methods of obtaining energy, such as using sunlight, chemical energy, or feeding on other organisms.

Which is bigger bacteria or protist?

eukaryotic cells first came about is called the endosymbiotic theory

This is wrong. Prokaryotic cells come first. The endosymbiotic theory is the hypothesis that sometime in history one bacteria 'ate' another bacteria (phagocytosis) and didn't completely digest its meal. What was left has become the modern day mitochondria in animal cells and the chloroplast and mitochondria in plant cells. Or more simply two prokaryotic cells formed a symbiotic relationship. But over time one organism gained the upper hand as their is genetic evidence for DNA transfer from the plastid in the organelle to the DNA in the nucleus.

Why does a vital function of pedicellariae clean the surface of a starfish?

Pedicellariae of a starfish help to keep its surface clean by removing debris, parasites, and algae. This cleaning function is crucial for maintaining the health of the starfish and preventing infections or blockages on its skin.

What is the endangerment of sea stars?

the answer to this question is the endangerment of sea stars are they are washed up onto the beach and then they dry out in the sun and die. This is how they are endangered. jksfdk;adjkht euirthjkas

What eats sea stars?

Sea star is another name for echinoderm star fish or sun star, which is a marine animal with spiny skin. Echinoderm means spiny skin in Greek, hence the name. Sea turtles, basking sharks, and sun fish are just a few of the predators of sea stars.

How do plantlike protist affect other living things?

Plant-like protists, such as algae, can affect other living things by producing oxygen through photosynthesis, which is essential for the survival of many organisms. Additionally, some plant-like protists can serve as food sources for other organisms in aquatic ecosystems, forming the base of the food chain. However, excessive growth of plant-like protists, such as harmful algal blooms, can have negative effects on other organisms by depleting oxygen and producing toxins.

What are the daily habits and behaviors of sea stars?

Sea stars are slow-moving animals that primarily feed on mollusks, crustaceans, and small fish. They typically use their tube feet and suction-cup-like structures to move around and capture prey. Sea stars also have a unique feeding mechanism where their stomach can be pushed out of their body to digest food externally.

Does starfish have blood?

Yes, starfish do have a circulatory system with a fluid called hemolymph that circulates nutrients and oxygen throughout their bodies. However, their circulatory system is not as complex as those of vertebrates and lacks red blood cells.

How do plant like protists move?

Plant-like protists, such as algae, can move through various mechanisms, including cilia, flagella, and pseudopodia. Cilia are hair-like structures that beat in a coordinated manner to move the protist. Flagella are whip-like structures that propel the protist by wiggling back and forth. Pseudopodia are temporary extensions of the cell membrane that extend and retract to push the protist in the direction of movement.