fossils

Question 1

Remains and physical evidence of an organism

Answer 1

fossil

Question 2

paleontologists explain(using fossils):

Answer 2

The history of life and paleoclimate

Question 3

Process of fossils in rock

Answer 3

1)Organism dies
2)immediately covered with sediments
3)Sediments cemented together
4)Creature rots away
5)Leaves mold
6) filled with minerals
7) makes a cast

Question 4

small organisms in tree sap, hardens and loses moisture over time, organisms and organs preserved
lighter the ___ the older the fossil/organism

Answer 4

fossils in amber

Question 5

Water fills up the organism i.e. tree, the minerals in the water is left behind after the water evaporates this preserves the wood and pores, wood rots away and is replaced by minerals, the cells are present

Answer 5

petrifaction

Question 6

organism preserved in tar i.e. La Brea tar pits

Answer 6

fossils in asphalt

Question 7

organism dies in the arctic area, freezes, preserved for 1000s of years, i.e. siberia
: 1999
wooly mammoth
organs and food preserved
20K years old

Answer 7

frozen fossils

Question 8

Naturally preserved evidence of animal activities not body parts:
footprints, eggs, coprolite

Answer 8

trace fossils

Question 9

used as a reference to date layers of rock and other fossils
rules:
1) lived for short time
2) found in rock layers around the world
3) easily made fossils

Abundant:
-ammonites
-trilobites

Answer 9

index fossils