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Coral don't have circulatory systems. They just have a gastrovascular system!

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12y ago

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Does a liver fluke have a circulatory system?

No, liver flukes do not have a circulatory system. They lack a true circulatory system for the distribution of nutrients and oxygen throughout their bodies. Instead, they rely on diffusion to transport substances within their bodies.


What is fire coral?

Fire coral is a type of marine organism that resembles coral but is actually a type of hydrozoan. It has a stinging sensation when touched, causing a painful rash or irritation on the skin. It is important to avoid contact with fire coral while diving or snorkeling.


What type of rock is a petoskey rock?

A Petoskey rock is a type of fossilized coral rock, specifically a type of hexagonaria (a colonial coral) found in Michigan, USA. It is known for its distinctive honeycomb pattern on its surface, resembling the fossilized remains of ancient corals.


What is Black Coral?

Black coral is a type of species belonging to the order Antipatharia, characterized by their black or dark-colored appearance. These corals are found in deep-sea environments and are known for their long, branching structures. Black coral is often harvested for use in jewelry and decorative items, although there are concerns about the sustainability of this practice due to overharvesting.


Can sandstone that began as coral be found on a continent?

Yes, sandstone that originated from coral reefs can be found on continents. This type of sandstone forms when coral reefs are buried and compressed over millions of years. As continents shift and change over time, these sandstone deposits can become part of the continental crust.