Calcium Carbonate
lobsters water beetles molluscs
Land dwelling animal's eggs have shells (hard or soft) to keep them from drying out. Fish eggs don't need shells because being in water they won't dry out.
Because they have to be soft to live in water.
Sea otters are known to feed on shellfish like clams and mussels by using their teeth to crack open the shells. They balance the shellfish on their chest as they float on their backs and use rocks to break open the shells.
They have shells that are closeable during low tide.
You have to go under water and there are a ton of pink sea shells everywhere. Than after you got the sea shells in the water go inside the crack in the boat. Than you get the big pink sea shells in there and you get your sea shell necklace
The calcium carbonate found in limestone was originally extracted from the shells and skeletons of marine organisms such as corals, mollusks, and foraminifera that accumulated on the ocean floor over millions of years. These organisms extract calcium and carbonate ions from surrounding water to build their calcium carbonate structures, which eventually become part of limestone deposits through geological processes.
Frogs and fish an be indicator of water acidity as the development of their eggs depends on the water's pH where the eggs mature. Clams and other molluscs as well as coral reefs are an indicator of water acidity as their shells are essentially calcium carbonate which dissolves in acidic water.
Salt can be extracted from mines or sea water.
Molluscs dont have legs. They do have a foot though.
salt is not produced but it is extracted from sea water throught evaporisation of water and then purifying it.
Mussels absorb carbon into their shells from the ocean water. The carbon is in the form of calcium carbonate, which mussels extract from the water to build their shells. When carbon dioxide in the atmosphere dissolves in the ocean, it forms carbonic acid, which can break down to release carbonate ions that mussels use to create their shells.
They have been observed lying on their back, on the water's surface, using a rock as a tool to open clams and/or oysters.
the majority of water extracted from urine from the Bowman's capsule
Yes
both.
they live in water... Octopus and giant squid is a mollusk... yeah...