Part 1-: The image above includes fossilized __________. They effervesce with di

Question

Part 1-:

The image above includes fossilized __________. They effervesce with dilute hydrochloric acid. What is the most likely way that they were preserved?

a) crinoid stems, recrystallization

b) crinoid stems, carbonization

c) corals, unaltered preservation

d) trilobites, molds

e) cephalopods, replacement by silica

Part 2-:

Think about how organisms get preserved and indicate which of the following organisms would have the highest preservation potential.

a) oyster

b) land plant

c) human

d) earthworm

Part 3-:

What property (or properties) of an organism make it a good paleoenvironmental indicator?

a) well adapted to its environment

b) slow evolving

c) has worldwide distribution

d) b and c are both correct

e) a and b are both correct

Part 4-:

The fossil coral above is composed of silica. How was it likely to have been preserved?

a) sedimentation

b) carbonation

c) replacement

d) as a mold

e) as a cast

Part 5-:

Which of the following statements is an accurate description of this type of stream:

a) this stream is quite stable and will maintain its’ course for quite some time.

b) the photo shows a mud flow on a steep slope.

c) this stream is likely to be found directly in front of a melting glacier.

d) this is a tidal stream that reverses direction from low to high tide.

e) the deposits of this stream are clay-rich.

Explanation / Answer

Part 1- a) crinoid stems, recrystallization

Part 2- a)oyster

Part 3- a) well adapted to its environment

Part 4- a) sedimentation

Part 5- b) the photo shows a mud flow on a steep slope

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects