Author Question: Life forms in the Precambrian included A) trilobites. B) brachiopods. C) coelacanths. D) ... (Read 83 times)

codyclark

  • Hero Member
  • *****
  • Posts: 538
Life forms in the Precambrian included
 
  A) trilobites.
  B) brachiopods.
  C) coelacanths.
  D) cyanobacteria.

Question 2

Life forms in the Precambrian include
 
  A) trilobites, brachiopods and stromatolites.
  B) cyanobacteria and trilobites.
  C) the agnatha and the coelacanths.
  D) stromatolites and certain primitive blue-green algae.



Pamela.irrgang@yahoo.com

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

Answer: D

Answer to Question 2

Answer: D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

For a complete list of videos, visit our video library