Fossils

Question 9 of 10 • SLPS-2001310-Earth/Space B -GF

How are casts formed by decaying organisms?

Answer

Organisms turn into rock over time.

Organisms leave carbon residue on a rock.

Organisms leave impressions in sediment that hardens into rock.

Impressions left by organisms are filled in with sediment that hardens into rock.

The Theory of Evolution

The Theory of Evolution

Evolutionary Relationships

QuizMultiple Choice

Question 9 of 10 • SLPS-2001310-Earth/Space B -GF

Answer

Organisms turn into rock over time.

Organisms leave carbon residue on a rock.

Organisms leave impressions in sediment that hardens into rock.

Impressions left by organisms are filled in with sediment that hardens into rock.

The Theory of Evolution

The Theory of Evolution

Evolutionary Relationships