No, starfish can move. Coral cannot move. Starfish have a mouth with which to eat. Coral bring in nutrients through tendrils.
Coral grows in salt water. The freshwater coming out of the river would kill it.
because it is an U shaped island with coral reefs surrounding it
Yes you can because the water becomes slow moving and the particles can settle and start the process of building a coral reef
A coral polyp is a small, tubular invertebrate animal with a mouth surrounded by tentacles. It is the basic unit of a coral colony and is responsible for secreting calcium carbonate to form the hard coral skeleton that makes up coral reefs. Coral polyps have a mutualistic relationship with zooxanthellae algae that live within their tissues and provide them with energy through photosynthesis.
The devil's mouth is island located off the coast of Aruba, they are called that because many sharp coral surrounds these islands and makes navigated extremely dangerous.
The Devil's Mouth is a key place in the book "The Cay". Devil's mouth is a large section of coral reef that grows cuts off several small islands from explorers.
No, the Amazon River expells 4.2 million cubic feet of water per second. This is too great for fragile coral to ever form, even disregarding all the other reasons why you would not find coral reefs near the mouth of the Amazon.
The answer is yes. Coral snakes do actually have fangs.
A coral polyp is a tubular sack-like animal with a central mouth surrounded by a ring of tentacles. The end opposite the tentacles, called the base, is attached to the substrate.
One animal that eats coral is the parrotfish. It has a very hard beak-like mouth and bites off bits of coral, eating the live coral animals and eventually excreting the hard parts as sand. Another is the Crown of Thorns Sea Star, which extrudes it's stomach over the coral to digest it. In groups they can decimate an outcrop of coral. The Crown of Thorns is covered with venomous spines which exude a neurotoxin.
Coral reefs are absent at the mouth of a river primarily due to the high levels of sediment and nutrients that river runoff introduces into coastal waters. These conditions reduce water clarity and light penetration, which are essential for coral photosynthesis. Additionally, increased nutrient levels can lead to algal blooms that outcompete corals for space and resources. The lower salinity and fluctuating water conditions near river mouths further inhibit coral growth and survival.