Because no other animal has anything like collar cells..
The sponges.
The organisms known as sponges were originally considered animals by zoologists due to their ability to move and filter feed. However, they were also claimed to be plants by botanists due to their sessile nature and lack of clearly defined tissues. Eventually, sponges were classified as animals based on genetic and developmental studies.
Sponges are classified as animals because they are multicellular, heterotrophic (meaning they rely on consuming organic matter for nutrients), and have specialized cell types that exhibit different functions within the organism. They lack true tissues and organs, but they possess cellular structures that are characteristic of the animal kingdom.
Yes, fossil sponges are among the oldest known animal fossils, dating back to over 600 million years ago. These simple multicellular organisms have left imprints in the rock record, providing valuable information about early animal evolution and Earth's history.
Plant and animal cells are classified as eukaryotic cells because they both contain a nucleus unlike a prokariotic cell, such as a bacteria cell, which does not contain a nucleus.
Because there are living cells in it(Ocean Sponges)
no they are animals
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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.
They are living life forms, but they are not animals, so they are possibly a sea reef, but not an animal, I know, it gets confusing...
Sponges
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.
Sponges are made up of two different types of organisms - one type are plantae, the other anamalia. Although it is debatable, sponges are classified as anamalia because part of them is animal.
False the tree of animals began with the human the human is classified as a animal even though it can talk walk and hold things.
they are sponges
Sponges
Why is panda classified as an animal ?