Our sleep cycles typically last usually 90 to 110 minutes on average.
The second line of defense is nonspecific resistance that destroys invaders in a generalized way without targeting specific individuals: Phagocytic cells ingest and destroy all microbes that pass into body tissues. For example macrophages are cells derived from monocytes.
The correct answer is Individual.
Species is the basic unit of macroevolution.
We can term macroevolution as a large-scale change at the species level which results in the formation of new species.
I think the answer is scientific research sorry if I’m wrong
This process is called diffusion
hope that helps
