Soil particles composed of decomposing organic matter are called ____

a. sand
b. humus
c. silt
d. clay
e. mineral


ANSWER: b

Biology & Microbiology

You might also like to view...

Water is a strongly polar molecule. How does it cross the plasma membrane?

What will be an ideal response?

Biology & Microbiology

Your friend does not believe that a platypus can be a mammal because it lays eggs like a bird or reptile. What evidence do you use to defend your position that a platypus is a mammal?

1.It is endothermic. 2.It has a cloaca. 3.It has mammary glands for milk production. 4.It does not have teeth.

Biology & Microbiology

Which of these is controlled by serotonin?

Mood, hunger, thirst, and sex drive Emotions and complex movement Feeling of well-being All of these are controlled by serotonin

Biology & Microbiology

__________ are free-living and usually kill their prey. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology