This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: _____ reefs were dominated by crinoids, blastoids, lacy bryozoans, brachiopods, and calcareous ... (Read 53 times)

dejastew

  • Hero Member
  • *****
  • Posts: 562
on: Jul 13, 2018
_____ reefs were dominated by crinoids, blastoids, lacy bryozoans, brachiopods, and calcareous algae.
 A)Carboniferous
 B)Cambrian
 C)Permian
 D)Devonian
 E)Ordovician

Question 2

What is a glacial erratic, and how can scientists use this feature to learn about a glacier?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mohan

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jul 13, 2018
Answer to Question 1

A

Answer to Question 2

A glacial erratic is a rock that has been eroded by a glacier and deposited some distance from its source. Erratics are compositionally dissimilar to the bedrock in the area of deposition.

By determining the likely source for an erratic, scientists can estimate the extent of historical glaciation.


dejastew

  • Hero Member
  • *****
  • Posts: 562
Reply #2 on: Jul 13, 2018
Thank you


mohan

  • Sr. Member
  • ****
  • Posts: 362
Reply #3 on: Jul 13, 2018
No problemo


« previous next »
 

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Boreal forests, such as this one in Siberian Russia, are dominated by a few species of conifer trees Boreal forests, such as this one in Siberian Russia, are dominated by a few species of conifer trees
Coral reefs, such as this one in the Red Sea, support some of the most diverse assemblages of organi Coral reefs, such as this one in the Red Sea, support some of the most diverse assemblages of organi
A rich diversity of life lives in and among coral reefs. A rich diversity of life lives in and among coral reefs.
Blue Lacy Blue Lacy
The expected value for a binomial probability distribution is _____. The expected value for a binomial probability distribution is _____.
Video: Types of energy transfer reactions: oxidation-reduction reactions and ATP generation reactions

For a complete list of videos, visit our video library