Author Question: Humus ____. A)is the material always comprising the topmost soil horizon B)is the dark, organic-rich ... (Read 72 times)

Kikoku · **on:** Jul 13, 2018

Humus ____.
A)is the material always comprising the topmost soil horizon
B)is the dark, organic-rich material formed by bacterial decay
C)is also known as organic litter
D)always includes large amounts of sediments
E)forms from the chemical weathering of the parent rock

Question 2

Organisms with endo- or exoskeletons usually have decreased locomotor functions because muscles are restricted.
Indicate whether the statement is true or false