Which one of the following soil horizons is least likely to interact directly with living organisms?
A) A horizon
B) O horizon
C) E horizon
D) C horizon
Question 2
Entering a new job at a small medical testing facility, Ben is cautioned to handle certain chemicals carefully. Wondering what harm some of these chemicals can potentially cause, Ben asks a coworker.
The coworker says, Well, I think they can cause cancer if you breathe the fumes. Ben wants to be certain. According to OSHA guidelines, Ben should A) read the relevant material safety data sheets.
B) search the Internet for medical articles related to these compounds.
C) ask the supervisors about the dangers of the substances he handles.
D) check the information on the HAZMAT signs in his workplace.
Model organisms used to study the genetics of development
Soil horizons: the structural layers of soil.
Location of the Sinuses (Sphenoid Sinuses are Directly Behind Ethmoid Sinuses)
The Atmosphere’s Oxygen Came from Photosynthetic Organisms
Traction neck with head in neutral position. With recipient’s face directly up, hold head at ...
Animated! Organisms are classified into groups according to their characteristics