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The definition of a Planarian is "any of various free-swimming, mostly freshwater flatworms of the class Turbellaria, having an undulating or sluglike motion: popular in laboratory studies for the ability to regenerate lost parts." This means that it can, if any body parts are chopped off, regrow them. In junior high we sliced it's head down the middle and it regrew two heads in a matter of weeks. Cool, but really disgusting. It is a worm-like animal. The definition of animal is "any such living thing other than a human being." So in conclusion, according to the definition of animal, a Planarian is an animal, but a very strange one.
What else can I help you with?
How many longitudinal nerves does a planarian have?
A planarian has two longitudinal nerve cords that run along its body length. These nerve cords are connected by transverse nerves, forming a ladder-like nervous system.
How do planarian eat?
Planarians eat by extending their muscular pharynx out of their mouths to engulf and ingest their prey, such as small invertebrates or organic debris. Their pharynx is able to secrete enzymes to help break down the food for digestion.
What kind of asexual reproduction does a earthworm use?
Planaria are hermaphrodites, possessing both testes and ovaries. Thus, they can reproduce asexually with their own gametes or sexually with another planarian. In asexual reproduction, the planarian detaches its tail end and each half regrows the lost parts by regeneration. However several problems can occur with this, so this does not happen very often. Instead, in sexual reproduction, each planarian transports its excretion to the other planarian, giving and receiving sperm. Eggs develop inside the body and are shed in capsules. Weeks later, the eggs hatch and grow into adults. Sexual reproduction is desirable because it enhances the survival of the species by increasing the level of genetic diversity.
How many layers of cells does roundworm have?
The body has three tissue layers and a fluid-filled false body cavity, meaning the cavity is between the inner and middle layers rather than the middle layer and the outer layer, as it is in complex animals.
Which organisms are reproducing asexually?
There are tons of organisms that reproduce asexually. As for ANIMALS - A lot of species of fish do (some sharks partake in parthenogenesis - a type of asexual reproduction), some species of wasps, whiptail lizards, sea anemones, coral, starfish, snails. All fungi, bacteria, Archaea, Protist and amoebas reproduce asexually. Some plants are capable of reproducing asexually, such as strawberry, onions and potatoes.
When was Lake Pedder planarian created?
Lake Pedder planarian was created in 1974.
How long can your planarian survive without food?
A planarian can live without food for about a week.
Is a planarian acoelomate pseudocoelomate or educoelomate?
A Planarian is an acoelomate, meaning they do not have a body cavity at all.
What are the two big dots on a planarian's head?
The two big dots on a planarian's head are its eyespots, which detect light and help the planarian navigate its environment. They are simple light-sensitive structures that allow the planarian to differentiate between light and dark. They also help the planarian avoid predators and find food.
Does planarian have backbone?
No.
Does a planarian have a backbone?
No.
Is a Planarian sessile?
No, a planarian is an example of a flatworm.
What feeding relationship is a planarian a part of?
A planarian is a flatworm and is parasitic which means that it feeds off living things.
Where is the pharynx located on a planarian?
The pharynx in a planarian is located on the ventral side of the body, towards the front end. It is a muscular tube-like structure that extends out of the body to help the planarian feed on prey.
Phylum name for planarian?
The phylum name for planarians is Platyhelminthes, which includes flatworms like the planarian. They are characterized by their flattened body shape and bilateral symmetry.
Planarian has a bilateral symmetry Explain?
name one anatomical feature (other than symmetry) that distinguishes a planarian from a hydra.
What is the common name for a planarian?
Flatworms!
