Banded iron formations - Study guides, Class notes & Summaries

Acanthostega correct answer: 360 MYA, first amphibian/ tetrapod had gills, tail fin, labryinthodont teeth, free digits Arthodires correct answer: 20 ft long, jawed fish, big ass fish, top predator but very slow Amino acids correct answer: proteins of life Agnatha correct answer: chordate jawless fish Lobefin fishes correct answer: more complex, has little paddle like bones; includes lung fish, coelacanth, osteolepiforms. Gave rise to amphibians DNA correct answer: nucleic ac...

NDSU GEOL 106 EXAM 3 WITH COMPLETE SOLUTION...

Geology Exam 3 NDSU Questions with correct Answers What are prokaryotes and stromatolites? What do they indicate about life in early Earth history? Prokaryotes - single celled. Stromatolites - form these mounds of bacteria. They indicate that it is very simple. They did not need oxygen telling us that there wasn't oxygen. What are banded iron formations? What do they indicate about oxygen in early Earth history? Occurred when oxygen from the air attached to metals and rusted them. ...

Delve into the fascinating story of Earth's atmosphere with this comprehensive file. Explore the evolutionary history and development of our planet's gaseous envelope, tracing its origins from the early stages of Earth to the present day. Unravel the complex processes that have influenced atmospheric composition and climate over millions of years, shaping the conditions for life as we know it. In addition to the atmosphere, this resource also sheds light on Banded Iron Formations (BIFs), uniq...

Pervious questions 4.0/ 4.0 Points Which two elements are the most common in the crust?  A. iron and magnesium  B. potassium and magnesium  C. silicon and oxygen Which element comprises about 8% of the crust?  A. silicon  B. iron  C. aluminum Which of the following techniques is the MOST diagnostic or reliable?  A. color  B. hardness  C. cleavage Question 4 of 25 0.0/ 4.0 Points Which of the following is considered to be composed of a mineral?  A. l...