All living organisms are classified into one of three domains: Bacteria, Archaea, and Eukarya. Organisms in the domianns Bacteria and Archaea have which of the following in common? 1. They are eukaryotic.2. They are multicellular, 3.They are prokaryotic4. .They are heterotrophic.

3. Prokaryotic

Explanation:

Archaea and bacteria are both prokaryotic, which means  they don't have a nucleus or membrane-bound organelles. Hope that helped!

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.