Explain in 3 sentences how structural adaptations and natural selection affect the diversity of life.

Which event would lead to primary succession of a forest?

What class of levers is shown in this image?

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?