Which domain or domains are made up of organisms without nuclei? ...

[berenicecastro]

Which domain or domains are made up of organisms without nuclei?
 
  a. archaea only
  b. bacteria only
  c. eukarya
  d. both archaea and bacteria
  e. both bacteria and eukarya

Question 2

The Moon's distance from Earth is measured very accurately by bouncing a laser beam off of a small mirror left on the surface of the Moon. If a laser is fired at the Moon and the signal returns in 2.6 seconds, what is the distance to the Moon?
 
  a. 390,000 km
  b. 390,000 m
  c. 780,000 km
  d. 780,000 m

[sailorcrescent]

Answer to Question 1

d

Answer to Question 2

a
RATIONALE: Distance = speed of light  time

[berenicecastro]

Thanks for the timely response, appreciate it

[nyrave]

Gracias!