Author Question: The establishment of the mosses on bare rock and eventual addition of grasses represents A) a ... (Read 81 times)

azncindy619 · **on:** Jul 16, 2018

The establishment of the mosses on bare rock and eventual addition of grasses represents

A) a climax ecosystem.
B) primary succession.
C) secondary succession.
D) intermediate succession.

Question 2

The causes of mortality differ greatly between developing and developed countries. In developing countries, a high proportion of mortality is caused by

A) infectious disease; while in the developed world, most deaths are related to crime.
B) poor nutrition; while in the developed world, infectious disease causes most deaths.
C) wars and accidents; while in the developed world, most deaths are related to infectious disease.
D) infectious disease; while in the developed world, most deaths are related to aging and diseases connected to voluntary behaviors such as smoking and diet.