Author Question: This biome is characterized by a well-developed vertical structure with four distinct layers: an ... (Read 43 times)

ahriuashd · **on:** Jul 13, 2018

This biome is characterized by a well-developed vertical structure with four distinct layers: an overstory, a middle canopy, understory, and forest floor.

A) Mediterranean shrubland
B) tropical savanna
C) desert
D) tropical rain forest
E) midlatitude broadleaf and mixed forest

Question 2

Much of Earth's water supply likely originated from

A) gases expelled from the Sun; i.e., solar wind.
B) respiration of early organisms.
C) asteroids.
D) photosynthesis.
E) transpiration