« previous next »

Author Question: Which of the following is an essential characteristic of an index fossil? A) The organism lived ... (Read 184 times)

imanialler

  • Hero Member
  • *****
  • Posts: 539
on: Jul 14, 2018
Which of the following is an essential characteristic of an index fossil?
 
  A) The organism lived in a very specific environment or two, such as tropical volcanic islands.
  B) The organism lived for a very limited period of geologic time.
  C) The fossils of the organism are exceptionally well preserved.
  D) The organism lived on the land, not in the ocean.

Question 2

Using the known rates of radioactive decay to date the crystallization of certain minerals is known as ________ dating.
 
  A) conventional
  B) radiometric
  C) relative
  D) fossil assemblage


234sdffa

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

imanialler

  • Hero Member
  • *****
  • Posts: 539
Reply #2 on: Jul 14, 2018
Correct answers!


234sdffa

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Jul 14, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Fossil from the Carboniferous period Fossil from the Carboniferous period
Fossil mosasaur Prognathodon, a varanoid Fossil mosasaur Prognathodon, a varanoid
A recently discovered fossil of a missing evolutionary link is shown on the right, and a ... A recently discovered fossil of a missing evolutionary link is shown on the right, and a ...
The remarkably complete skull of a 3-year-old Australopithecus girl; the fossil is 3.3 million ... The remarkably complete skull of a 3-year-old Australopithecus girl; the fossil is 3.3 million ...
Air Quality Index Air Quality Index
Ten Foundational Essential Oils Cont. Ten Foundational Essential Oils Cont.
Video: System organization - PPM system types (Somatic, Autonomic & Enteric) and Reflex arc types

For a complete list of videos, visit our video library