1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleks04 [339]
3 years ago
8

While studying for your physical anthropology midterm, your classmate tells you that the bones of Lucy, a famous australopitheci

ne specimen that dates to about 3.2 million years ago, were dated based on carbon-14 analysis. You note that this is incorrect becausea. carbon-14 analysis cannot provide accurate date estimates that far into the past.b. Lucy is a fossil hominid, meaning her bones are no longer actually bone but rather rock.c. palaeomagnetic dating is the only way to arrive at that numerical age.d. All of the above
Geography
1 answer:
emmainna [20.7K]3 years ago
3 0

Answer:

The answer is Option D. All of the above.

Explanation:

Fossils are formed when living organisms become trapped in the earth and their soft tissues decompose but leave behind the hard tissues like bone. The bones gradually become rock due to the sediments that begin to cover the bones. Therefore, the fossil remains of Lucy are no longer bones and cannot provide the organic material that is necessary when trying to achieve carbon-14 dates from an ancient site. It is also true that C-14 dating tends not to be very accurate with a specimen as old as Lucy. There are new dating techniques being experimented with all the time in this branch of research, like the 40Ar/39Ar (Argon-Argon) dating technique, but in general, scientists have used paleomagnetic studies to try to date fossil remains as old as Lucy's.  

You might be interested in
During most of the year, the air over Daytona Beach contains a great amount of moisture.
Anika [276]
Daytona beach is close to a warm ocean! Did this about 2 years ago plus it’s common knowledge that Daytona is in Florida and Florida is by an ocean near the equator which is hot.
8 0
3 years ago
Cite examples of changes brought about by a shift from rural to urban living.
aliina [53]

Answer:

As populations transition from rural to urban living, many social changes take place. For example, as people move to urban environments, they tend to live in closer proximity to each other. This presents problems when it comes to sanitation and hiegiene.

Explanation:

hope this helps

have a great day/night

8 0
2 years ago
Identify and explain one pattern that can be found regarding the distribution of food deserts.
JulijaS [17]
Is there a picture ?
4 0
3 years ago
Who lives in florida
Lerok [7]
My aunt does and my uncle
3 0
3 years ago
In which geographical region is Bermuda situated?
balu736 [363]
It Is located in the Sargasso Sea (inside the Atlantic Ocean)
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is not a negative environmental effect associated with cars? A. Deforestation B. Roadside litter C. Toxic
    13·2 answers
  • How does culture emerge as humans live out the Christian mandate
    13·1 answer
  • The dividing line between eastern europe and western europe is along the border of france
    9·2 answers
  • Can you please tell me where this bridge is located?
    8·1 answer
  • New suburbs that include retailing, industry, office, and entertainment activities, but are less connected to the central city,
    11·1 answer
  • En que consiste cada uno de los tipos de climas observados en los mapas
    7·1 answer
  • What are the giant gullies on continental slope called?
    5·1 answer
  • If the direction of Earth's rotation reversed, the most predictable effect would be ________. A. an elimination of deserts and i
    12·1 answer
  • What is land use?
    15·1 answer
  • Why do production possibilities curves only compare two different goods or services?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!