Sea urchins belong to the phylum Echinodermata.
Sea urchins reproduce by releasing eggs and sperm into the water, where external fertilization takes place. Once fertilized, the eggs develop into larvae that eventually settle and grow into adult sea urchins. Some species of sea urchins can also reproduce by asexual means, such as splitting or budding.
Sea urchins come in a variety of colors including purple, red, green, black, and white. Each species of sea urchin can have its unique color patterns.
Let me fix this answer. The sea urchin is in the echinodermata kingdom
An overfishing of herring can disrupt the food chain and remove a key predator of sea urchins. With fewer herring to feed on sea urchins, their populations can increase unchecked leading to ecosystem imbalance and potentially to overgrazing on kelp forests where sea urchins feed.
No. Sea urchins live in the sea.
More sea urchins.
The classification of a Sea Urchin is Echinoidea
sea urchins eat kelp.
there are excatly 3million purple sea urchins
Sea urchins belong to the phylum Echinodermata.
No. Sea urchins are primary consumers and only eat sea weed, algae and kelp.
in the sea
Yes, sea urchins are herbivores because they mainly feed on algae.
Sea urchins reproduce by releasing eggs and sperm into the water, where external fertilization takes place. Once fertilized, the eggs develop into larvae that eventually settle and grow into adult sea urchins. Some species of sea urchins can also reproduce by asexual means, such as splitting or budding.
Sea urchins are found generally in the sea, however they can also be found in/on rock pools or areas near to the sea.
In the 1800s, too many sea otters were hunted for their fur. Without sea otters, fewer sea urchins were eaten. Soon, too many sea urchins were being born. Smaller fish could not survive, because sea urchins ate their supplies of kelp. These fish were food for sea stars and crabs. The sea stars and crabs began to die out.