7 résultats pour "bivalve"

• Bivalves n.

• bivalves - encyclopédie.

• Définition et usage du mot: BIVALVE, adjectif et substantif masculin.

• Bénitier: C'est le plus grand coquillage bivalve.

• mollusques.

  herbivores. Sur les côtes, les chitons broutent les algues et dans les jardins, les escargots et limaces dévorent les salades. Pour se nourrir, la plupart des bivalves filtrent les particules en suspension dans l'eau. Ainsi, une huître filtre 60 litres d'eau par jour. Sur certains littoraux, les moulesabondent au point d'éliminer les autres animaux. Quelques gastéropodes sont carnivores et attaquent d'autres animaux, fixés ou peu agiles. Les plus remarquables sont les cônes, animaux marins qui p...

• Invertebrate - biology.

  animals with a five-pointed design. They live in the sea and move with the help of tiny fluid-filled feet—another feature found nowhere else in the animal world. Zoologists recognize several different groups of worms. The phylum known as flatworms contains the simplest animals possessing heads. Nerves and sense organs areconcentrated in the head. Most flatworms are paper-thin and live in a variety of wet or damp habitats, including the digestive systems of other animals. Roundwormsrepresent anot...

• Invertebrate - biology.

  animals with a five-pointed design. They live in the sea and move with the help of tiny fluid-filled feet—another feature found nowhere else in the animal world. Zoologists recognize several different groups of worms. The phylum known as flatworms contains the simplest animals possessing heads. Nerves and sense organs areconcentrated in the head. Most flatworms are paper-thin and live in a variety of wet or damp habitats, including the digestive systems of other animals. Roundwormsrepresent anot...