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

Author Question: What evidence do we have that life arose quickly? What will be an ideal ... (Read 14 times)

evelyn o bentley

  • Hero Member
  • *****
  • Posts: 564
on: Jul 27, 2018
What evidence do we have that life arose quickly?
 
  What will be an ideal response?

Question 2

Overall, what is our most accurate technique for measuring the distance to a nearby star?
 
  A) radar ranging
  B) stellar parallax
  C) Hubble's law
  D) white dwarf supernovae


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kusterl

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 27, 2018
Answer to Question 1

Because of the period of heavy bombardment, it would have been difficult for life to exist more than 3.9 billion years ago. Combined with evidence from fossils of life 3.5 billion years ago and carbon isotope evidence dating back to 3.85 billion years, it seems that it only takes a few hundred million years for life to spring into existence.

Answer to Question 2

B


evelyn o bentley

  • Member
  • Posts: 564
Reply 2 on: Jul 27, 2018
Wow, this really help

cici

  • Member
  • Posts: 325
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

The life cycle of a zygomycete, the black bread mould Rhizopus stolonifer. The life cycle of a zygomycete, the black bread mould Rhizopus stolonifer.
These species are all at risk of extinction. Species with “slow” life-h These species are all at risk of extinction. Species with “slow” life-h
Lewis Hine’s 1910 photograph shows a tenement alley in New York City. More famous for his “unsettlin Lewis Hine’s 1910 photograph shows a tenement alley in New York City. More famous for his “unsettlin
In The Gross Clinic (1875), by Thomas Eakins, Professor Samuel Gross’s team of surgeons cuts through In The Gross Clinic (1875), by Thomas Eakins, Professor Samuel Gross’s team of surgeons cuts through
Common skin signs are often evidence of an illness or disorder. A papule is a solid, circumscribed, ... Common skin signs are often evidence of an illness or disorder. A papule is a solid, circumscribed, ...
Life cycle of Rhizopus stolonifer, a black bread mold Life cycle of Rhizopus stolonifer, a black bread mold
Video: Passive Smoke Exposure

For a complete list of videos, visit our video library