Given the basic building blocks of planets are widespread and the same laws of physics operate everywhere, we would expect
A) we have not detected any other planetary systems so we have no way of knowing
B) other planetary systems to be identical to our own with the same number and types of planets as our own solar system
C) other planetary systems to be laid out in a similar manner to our own with inner rocky terrestrial planets and outer gaseous Jovian planets
D) other planetary systems to be very different than our own because the detailed conditions that existed in our own solar nebula are unlikely to have been replicated elsewhere
Question 2
One of the first large organisms to develop the means to live on land were probably
A) plants
B) insects
C) reptiles
D) mammals
