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In zoology, the epidermis is an epithelium (sheet of cells) that covers the body of a eumetazoan (animal more complex than a sponge). [1] [2] Eumetazoa have a cavity lined with a similar epithelium, the gastrodermis, which forms a boundary with the epidermis at the mouth. [2] Sponges have no epithelium, and therefore no epidermis or ...
Image credits: an1malpulse Animal Pulse has drawn in 23.5K followers on Instagram, and its community is growing larger by the day. It’s easy to see why—the page is packed with facts and ...
Most of us learned about nature and animals in school. But as we step outside the four walls of those classrooms, we realize that the world around us is much more intricate and fascinating than ...
Histologic image showing a section of epidermis. Stratum spinosum labeled slightly below center. The stratum spinosum (or spinous layer/prickle cell layer) [1] is a layer of the epidermis found between the stratum granulosum and stratum basale. [2] This layer is composed of polyhedral keratinocytes. [3] [4] These are joined with desmosomes. [3]
The body wall consists of a cuticle, an epidermis and longitudinal and circular bands of muscle fibres. In some primitive species, each epidermal cell has a single cilium, a feature shared only by the gnathostomulans. The whole ventral surface of the animal may be ciliated or the cilia may be arranged in rows, patches or transverse bands.
Ace trivia night with these cool and random fun facts for adults and kids. This list of interesting facts is the perfect way to learn something new about life. 105 Fun Facts About Science, History ...
Annelids are members of the protostomes, one of the two major superphyla of bilaterian animals – the other is the deuterostomes, which includes vertebrates. [68] Within the protostomes, annelids used to be grouped with arthropods under the super-group Articulata ("jointed animals"), as segmentation is obvious in most members of both phyla ...
In this fun infographic, explore the world of baby animals. Find out what they’re called, and learn a fun fact about each. ... Baby Animals 101: Fun Names and Surprising Facts. Ashley Haugen ...