Molluscs

Molluscs are invertebrates. They have a soft body, but often protected shell. Are for exapmle : snails, clams, octopus, squid, starfish, sea urchins.

Snails are beautifully colored and have a beautifully shaped shells. Shells are watertight, so the body does not dry out. They have a muscular leg and a sharp tongue. Snails move very slowly.

Snails within seconds can hide in the shell. Snails are food for the people. They are popular in French cuisine.

Clams have flat body and shells composed of two flaps. They bury themselves in the mud or sand. They do not have a head. They have some sense orangs. Clams filter food from the environment. Clams are caugth because they are very tasty, but also produce pearls. Pearl grows about 1 millimeter to 5 years.

Octopus and squid are very intelligent Octopus and squid are very intelligent. They have a well-developed brain and nerve system. They are looking for food at night. They grab the victim's long arms.

They very fast sail, even 35 km/h /kilometers on hour/ They very fast sail, even 35 km/h /kilometers on hour/. They can jump out of the water to a height of 4 meters.

Octopus and squid have a great vision. They can change colors. They can produce light. Squid can flash in white, blue, yellow and red.

Octopus has eight muscular arms. It grabs them victims.

Starfish are marine predators. They live at the bottom of the seas, oceans, under the rocks and on coral reefs.

Starfish red is also in the Baltic.

They are moving very slowly. Their bodies are divided into 5 parts. They do not have a head or brain. They do not have a front or back. They can move in any direction. Starfish have a mouth on the underside.

They are food for fish, crabs and other marine animals.

Sea urchins are lazy. They most of the time spend on the seabed among the seaweed.

Sea urchins are spherical body. Their body is covered with spines. Spines contain venom.

They are variously colored. They are very calm animals. Sea urchins feed on plants and small animals, which fall in their spines.

On stone beaches bath is recommended in boots, which have a hard, rubber soles. Stepped on a sea urchin can be painful and even dangerous to health.

THE END

Opracował: Tymoteusz Tomala Bibliografia: „Encyklopedia Przyrody” Wydawnictwo Pascal, Bielsko Biała 2008 ISBN 978 - 83 – 7304 – 697 - 9 „Nasze zwierzęta” Jivi Cihav Wydawnictwo Elipsa, Warszawa 1996 ISBN 83 -85152 – 97 - 0 „Zadziwiający świat zwierząt” Wydawnictwo Arti, Warszawa 2006 ISBN 83 – 89725 – 40 – 1 Wikipedia