The unusual nature of viruses (behaving as living organisms while ...

[michelleunicorn]

The unusual nature of viruses (behaving as living organisms while within them, but becoming inert while isolated) has caused scientists to consider the possibility that:
 
  A) viruses may be considered a kind of life.
  B) the ability to breathe may need to be added to the definition of life.
  C) the ability to evolve or mutate should be added to the definition of life.
  D) the ability to grow should be added to the definition of life.
  E) the definition of life may be more complex than a simple check list.

Question 2

Why are telescopic observers so obsessed with observing Mars?
 
  What will be an ideal response?

[kiamars2010]

Answer to Question 1

E

Answer to Question 2

The red color attracted our attention in prehistoric times. With the advent of the telescopes, changing polar caps and dark markings on a rotating disk were seen. We are seeing the surface of another planet, and it had clouds, dust storms, polar caps and other seasonal changes, all seen from Earth. Of course, Lowell's canals just added to the obsession.

[michelleunicorn]

Gracias!

[kilada]

TYSM