Focus On Life Science: California Grade 7

Lesson 1: Fossils and Evolution

Standards Check

1.
What does a paleontologist study? 4.e
A)dinosaurs
B)fossils
C)plants
D)life
2.
What kind of information have fossils provided for scientists? 4.e
A)They have helped scientists determine when plants and animals first lived on land.
B)They have helped scientists determine when life first appeared on Earth.
C)They have helped scientists determine when organisms became extinct.
D)all of the above
3.
What determines whether or not an organism will become a fossil? 4.e
A)the type of soil it is buried in
B)its chemical makeup
C)the weather conditions at the time of death
D)how well it is protected from scavengers, decomposers, and physical agents that break things down
4.
What is a carbonaceous film 4.e
A)a silhouette of the original organism made of a thin film of carbon residue
B)a mold of the original organism made of carbon residue
C)a cast of the original organism made of carbon residue
D)a silhouette of the original organism made of a thin film of nitrogen residue
5.
What natural preservative have scientists discovered fossils within? 4.e
A)amber
B)frozen ground
C)tar
D)all of the above
6.
How is sediment transformed into rock? 4.c
A)Cementation occurs.
B)Compaction occurs.
C)Compaction and cementation occur.
D)Compaction and carbonization occurs.
Grade 7
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