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What three systems developed in the mesoderm of planarians?
The three systems that developed in the mesoderm of the planarians are ectoderm, mesoderm, and endoderm. They are usually described as the three germ layers.
Planarians flukes and leeches are?
Planarians are free-living flatworms, flukes are parasitic flatworms that infect various host animals, and leeches are blood-feeding segmented worms.
5 characteristics of planarians that make it an animal?
Planarians are multicellular organisms with specialized cells and tissues. They have a defined body plan with distinct organs and structures. Planarians exhibit movement and respond to external stimuli. They consume food and have a digestive system. Planarians can reproduce sexually or asexually, exhibiting typical animal reproductive capabilities.
What is the common name of annelids?
Segmented worms
Where do planarians live?
they live in afica they live in afica
Are planarians symetrical?
Planarians have bilateral symmetry.
How many types of worm are there and what specif tpes are there?
There are three main types of worms: annelids (segmented worms), nematodes (roundworms), and platyhelminthes (flatworms). Annelids include earthworms and leeches, while nematodes encompass many species like Ascaris and Caenorhabditis elegans. Platyhelminthes feature species such as planarians and tapeworms. Each type plays a unique role in ecosystems and has distinct biological characteristics.
Are planarians non parasitic flatworms?
Yes, planarians are non-parasitic flatworms
Planarians are parasitic segmented worms?
Planarians are neither parasitic or segmented. They are flatworms.
What is the segmentation of planarian?
Planarians exhibit a form of segmentation known as "metamerism," but it is not as pronounced as in more complex organisms like annelids. Instead of distinct segments, planarians have a body that can be divided into regions, such as the head, trunk, and tail, which can regenerate. Their body plan is more simplified, with a flat, bilaterally symmetrical structure that allows for efficient movement and nutrient absorption. While they do not have true segments, their body organization allows for various specialized functions.
What are structures that enable planarians to expel liquid waste?
The structures that enable planarians to expel liquid waste are normally pores. The pores are found on the dorsal surface of the planarians.
Where would you find annelids?
annelids
What are Annelids and are the vertebrate?
Are annelids vertebrate
What phylum contains planarians?
Platyhelminthes
How do planarians move?
Planarians move by expanding and contracting their bodies as they grip a surface.
What do annelids use for excretion?
Annelids have an anus
Do Planarians have a scientific name?
Yes, all organisms have scientific names. Thus planarians have scientific names too.
