Sea Urchins

yes

No, they are two entirely different creatures.

A sea urchin is a half-sphere. The top of the urchin is rounded like a globe but the bottom is flattish to fit on the bottom of the sea so it can walk around.

well, this requires a detailed account of when i served in nam, we used urchins as a substitute for grenades, this is why we lost. theory decreed that the urchin would eat the gooks faces and therefore win us the war. it turns out that the urchins could not eat fast enough or they were on the side of the vietcong. now, scientists discovered that the way the urchins metabolism works is by manipulating the time and space of their surroundings by using kryptonite.

sadly no kryptonite was available in Vietnam. i remember my dear friend Johnson using his urchin grenade as a pillow because his was riddled with herpes, he woke up dead without a face, it rained for 31 days and 6 night. i think god was pissed, or just bored. anyway, i hope this answers your questionne bbz xoxo

Because through various actions, the plankton gives off some of that energy before being eaten.

NOTHING APART FROM LUKES

season and second

Sea stars favorite food are mussels, they grasp the mussel with their tube feet and pry it apart. They then eject their stomach into the open mussel and digest the soft mussel body. Once digested, they slurp it back up. Sea urchins are very different. They usually eat algae by grazing on rocks. They do this by way of a very complex jaw system called aristotles lantern. They are similar in that in both cases, the oral surface is on the bottom of the animal.

I usually put it in a cooler.

Apparently They Do So From Their Eyes, That's Nasty Right?!

in seahorses the female lays the egg and the male looks after it till the female return .

Sea urchins are found in oceans around the world, inhabiting a variety of marine environments, from shallow coastal waters to deep ocean floors. They are particularly abundant in temperate and tropical regions, such as along the coasts of the United States, Japan, and Mediterranean countries. Their presence can vary significantly depending on local ecological conditions.

yes they are!

yes i think so . The real answer: yes but only some types are piosonous.

Sea urchins are primarily considered herbivores and occupy a primary consumer position in the trophic level. They feed on algae and other plant materials, playing a crucial role in controlling algal populations in marine ecosystems. Additionally, they can be preyed upon by various predators, such as sea otters and certain fish, placing them in the food web as both consumers and prey.