Higher animals require a structured circulatory system for chemical transport and waste elimination. The two main types of circulatory systems are open and closed. Arthropods and most mollusks have open circulatory systems, while mammals, reptiles, amphibians, birds, and some invertebrates have closed ...
- Lesson for Kids Clade Definition, Uses & Examples Systematics in Biology | Definition, Main Aim & Examples Tree of Life | Bacteria, Archaea & Eukarya The Three Domains of Life | Characteristics & Classifications Create an account to start this course today Used by over 30 million students ...
What are some examples of cnidarians? In which environments can these animals be found? Animals are classified using what types of characteristics? What is the main characteristic that is common in amphibians but not in mammals? Describe one animal in each land-based biome. Name two chara...
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The skin serves several crucial purposes. It serves as the body’s primary barrier between the inside and exterior and as its first line of defense against“foreign”intruders including allergens and pathogens. In amphibians, the skin plays a special role in gas exchange to some extent. ...
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Bryophytes are closely related to the earliest plants that made their way out of the water and colonized the land millions of years ago. In a way, we can think of bryophytes as being the amphibians of the Plant Kingdom. Not only are they the first plants to colonize land, but they stil...
They are commonly classified as fish, amphibians, reptiles, birds, or mammals. Humans are vertebrates. An invertebrate is any animal that does not have a backbone or vertebral column. There are over 30 different phyla of invertebrates. Examples include worms, jellyfish, clams and oysters, ...
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Explore the mode of nutrition of fungi. Discover what mushrooms eat and understand how fungi get their food and obtain nutrients using various...