Describe these astronomical bodies that exist in our universe: o Galaxy:
o Solar system:
o Star:
o Sun:
o Planet:
o Moon:
o Comet:

What is the name of the two satelites on mars

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.

The earth formed roughly 4.5 billion years ago, yet evidence of life dates back to about 3.5 billion years ago. which one is not a possible hypothesis of how life on earth arose?