Which best describes an extreme environment where archaebacteria might live?

How do the evolutionary chart and the video support the claim that all living things are made up of cells?

Where is having brightly colored feathers that attract mates most clearly an adaptation for a bird? a. a forest with dense vegetation b. a sandy beach beside an ocean c. a snowy tundra with little vegetation d. a swamp with many hawks that eat birds

Which would stop hardy-weinberg equilibrium from happening?