there are excatly 3million purple sea urchins
Sea urchins are purple, red, orange, yellow/orange, and a mix of red and purple.(Sea Urchins come in many shapes sizes and colors.)
there are none because sea urchins live in water and not on land unless they are dead
Sea urchins are purple, red, orange, yellow/orange, and a mix of red and purple.(Sea Urchins come in many shapes sizes and colors.)
No. Sea urchins live in the sea.
Sea star or starfish (Asteroidea)Brittle stars, basket stars, serpent stars (Ophiuroidea)Sea urchins, heart urchins and sanddollars (Echinoidea)Holothurians or sea cucumbers (Holothuroidea)Feather stars and sea lilies (Crinoidea).
200 types
Sea Urchins have spikes are soft and chalk like , or they can be , hard and covered by a shell-like structure . There are more than 200 types of Sea Urchins , there are many different sizes and shapes of Sea Urchins species.
More sea urchins.
in seahorses the female lays the egg and the male looks after it till the female return .
sea urchins can either reproduce sexually or asexually sea urchins can either reproduce sexually or asexually
The classification of a Sea Urchin is Echinoidea