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don't know. think is the climate changes.

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15y ago
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Q: Why did mollusks become extinct what causes them?
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How could animals be extinct?

Animals are extinct when there's no known animals part of the species still alive.Or, if you're asking how they become extinct, that can be because of many causes.


What if hornets went extinct?

The same problem occurs with other endangered species, it causes an environmental disturbance, but hornets is very improbable to become extinct.


What causes a blue whale to become extinct?

The greatest danger to blue whales was being hunted by humans.


Are mollusks a crustacean?

Snails are actually mollusks and crustacean. They are very unique creatures.


How did bears become extinct?

They are not extinct.


When did aardvarks become extinct?

They are not extinct.


How did emus become extinct?

They are not extinct.


When did the Sioux become extinct?

The are not fully extinct but nearly extinct.


What causes habitat?

Habitat destruction is a main cause of animals become endangered or extinct. What causes it is humans clearing the land for industry and natural disasters such as floods and fires.


Which have a greater number of species cnidarians or mollusks?

Mollusks win this one, with the 8 following species: Caudofoveata Aplacophora Polyplacophora Monoplacophora Bivalvia (bivalves) Scaphopoda Gastropoda Cephalopoda Cnidarians have the following 5 species (one extinct): Anthozoa Scyphozoa Cubozoa Hydrozoa Conulata - extinct


Why do most species of animals become extinct?

Most become extinct because they can not adapt to changes in their environments. Those that can don't become extinct.


Will panda's become extinct?

In years maybe decades the panda will become extinct