Discussion Homework

Discussion Topic

Unit 1: Is there life off Earth?

Read and provide your opinion on this topic: Should tax dollars be spent to search for life on other planets?

Is There Life Off Earth?

Life as we define it on Earth is based on the following characteristics:

-Reproduction. Living systems are able to reproduce on their own.

-Growth. After a living system is “born,” it grows.

-Metabolism. Living systems share a complex chemistry that includes nutrient cycling (taking in food and giving off waste), energy production, protein synthesis, and DNA replication.

Macroscopic living systems such as animals and plants have so far not been found anywhere off our planet. But it is possible that there are systems off Earth that possess the cellularity, chemical organization, and complexity we equate with being “alive.” Traces of once-living microbes (fossils) have been found on Mars. Also, a meteorite found in Antarctica and thought to be from Mars contains some organic waste products and minerals very similar to those found where dead microorganisms on Earth have been collected. Finally, scientists have found microorganisms living in the Atacama Desert in Chile, which was once thought to be an inhospitable, sterile environment reminiscent of Mars. The microbes apparently are capable of long-term dormancy. When environmental conditions become favorable (rain once every decade), it is thought that these microbes then flourish.

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more
error: Content is protected !!