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The cells of all animals except sponges are organized into structural and functional units called?
In most animals cells that carry out the same function form structures called tissues. An organ is a group of tissues working together for a common function.
Sponges can be said to show some cell differentiation (and therefore have tissues). The porifera (the phylum containing sponges) are some of the most ancestral animals on the planet and only have two cell types. One makes up the soma (the body) and the other the germ line (a reproductive system). Interestingly, these cells have the ability to self-recognise which was important in the evolution of multicellularity. So, if you put a sponge through a blender if will eventually rearrange itself back into its original form. (Please don't try this with your pet hamster - it definitely won't work!)
What else can I help you with?
What cells of all animals are organized into structural and functional units called tissues EXCEPT for the?
Unicellular organisms. Tissues are formed by specialized groups of cells in multicellular organisms to perform specific functions, but unicellular organisms are not composed of different types of cells that can organize into tissues.
What structural protein found in all sponges is?
The structural protein found in all sponges is collagen. It provides support and structure to the sponge's body, allowing it to maintain its shape and function.
What did early scientists classify sponges as?
Early scientists classified sponges as plants because of their stationary nature and lack of obvious sensory organs. It was not until the 18th century that sponges were recognized as animals due to their ability to move, feed, and reproduce like other animals.
Why did early naturalists mistake sponges for plants instead of animals?
Early naturalists mistakenly classified sponges as plants instead of animals because sponges lack typical animal characteristics such as organs, tissues, and mobility. Additionally, sponges were often found attached to rocks or other surfaces, resembling plants rooted in the ground. This led to the initial confusion in classification.
Why are sponges considered animals?
Sponges are considered animals because they are multicellular organisms that lack cell walls, have specialized cells, and are capable of consuming food to obtain energy. They also have a simple body structure and are classified as part of the animal kingdom.
What cells of all animals are organized into structural and functional units called tissues EXCEPT for the?
Unicellular organisms. Tissues are formed by specialized groups of cells in multicellular organisms to perform specific functions, but unicellular organisms are not composed of different types of cells that can organize into tissues.
Which animal phylum has the lowest structural organisazation?
The phylum Porifera, which includes sponges, has the lowest structural organization among animal phyla. Sponges lack true tissues and organs, instead consisting of loosely organized cell layers that perform basic functions like feeding and reproduction.
Do sponges have nerves?
No sponges lack organized multicellular organs, such as nerves and muscles.
What is sponges plants or animals?
Sponges are animals of the phylum Porifera
Are sponges autotrophs?
No. Sponges are animals, which are heterotrophic.
What species are sponges?
Sponges are animals of the phylum Porifera.
What are the functions of spicules in sponges?
Spicules provide structural support.
What group are sponges divided into?
Sponges are animals of the phylum Porifera
What structural protein found in all sponges is?
The structural protein found in all sponges is collagen. It provides support and structure to the sponge's body, allowing it to maintain its shape and function.
Why are collar cell important in classifying sponges as animals?
why are collar cells important in classifying sponges as animals
Are mushrooms and sponges fungi?
Mushrooms and toadstools are examples of fungi. Sponges are animals of the phylum Porifera. In biological terms, fungi form a kingdom. Plants have a separate kingdom. Animals have a separate kingdom.
What is the only animal phylum that does not have tissues and symmetry?
The phylum Porifera (sponges) is the only animal phylum that lacks true tissues and symmetry. Sponges are simple multicellular organisms with specialized cells, but they do not have tissues that are organized into distinct structures like other animals. Additionally, sponges exhibit asymmetry rather than bilateral or radial symmetry found in other phyla.
