« previous next »

Author Question: Why is the claim of fossilized life in the Martian meteorite ALH84001 controversial? A) it is ... (Read 138 times)

c0205847

  • Hero Member
  • *****
  • Posts: 531
on: Jul 27, 2018
Why is the claim of fossilized life in the Martian meteorite ALH84001 controversial?
 
  A) it is doubtful that the rock actually came from Mars
  B) the proposed fossilized organisms in no way resemble any kind of life found on Earth
  C) the rock is too young to have fossilized life within it
  D) there are many possible nonbiological explanations for the observed evidence

Question 2

A star less massive than the Sun will have
 
  A) an identical lifetime as the Sun because although its overall mass is lower, the mass of its nuclear burning core is the same
  B) a shorter lifetime because it has less fuel to burn
  C) a longer lifetime because although its overall mass is lower, the mass of its nuclear burning core is larger
  D) a longer lifetime because its central core is cooler and less dense


nikmaaacs

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Fossilized Bacteria Fossilized Bacteria
Grime's classification of plant life-history strategies Grime's classification of plant life-history strategies
Life's Calendar Life's Calendar
Life Is Abundant in Soil Life Is Abundant in Soil
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
Life cycle of Plasmodium. Life cycle of Plasmodium.
Video: Introduction to Insulin

For a complete list of videos, visit our video library