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Urchin - page 3
Which sea creature has a hard shell covered with many spines?
The spherical, hard shells (tests) of sea urchins are round and spiny, ranging in diameter from 3 to 10 cm (1 to 4 in). Sea urchins move slowly, crawl...
Does sea urchins piosonous?
Yes. Sea urchins have two types of venomous organs - spines and pedicellaria. Spines produce puncture wounds. Contact with sea urchin spines and their...
What are sea urchins eatin by?
Sea urchins are sought out as food by birds, sea stars, cod, lobsters, and foxes. In the northwest, sea otters are common predators of the purple sea ...
Are there urchins in New York?
Most sea urchins served in New York City reportedly come from Maine, Massachusetts, or California. Are there sea urchins in America?Where are sea urch...
When a sea urchin's spine breaks off will it grow back?
Summary: The sea urchin's tough, brittle spines are an engineering wonder. Composed of a single crystal from base to needle-sharp tip, they grow back ...
Is a urchin a living animal?
Sea urchins move slowly, crawling with tube feet, and also propel themselves with their spines. Although algae are the primary diet, sea urchins also ...
How many kinds of sea urchins are there?
How many types of sea urchin are there?What is the rarest sea urchin?How many colors of sea urchins are there?Is a hedgehog a urchin?Can you eat urch...
Are sea urchins plant or animal?
sea urchin, any of about 950 living species of spiny marine invertebrate animals (class Echinoidea, phylum Echinodermata) with a globular body and a r...
How do kina reproduce?
There are both male and female kina. ... The eggs are small and are fertilized in the water by sperm from an adjacent male. The eggs hatch into free-s...