Type o WBC present in human blood with lowest concentration

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

9. the history of life on earth is recorded in