At what time of day does the observer leave the dark side of the Earth and enter the sunlit side

Select all the true statements about the cosmic microwave background radiation

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls

The diagram shows a chicken embryo and a human embryo