In which horizon of a soil profile is the parent material usually found?

A horizon

B horizon

C horizon

R horizon

Which of the following can start a succession? a. forest fire b. lack of disturbance c. planting some trees

Which greenhouse gas can be added to the atmosphere by burning wood, oil, natural gas, and coal? carbon monoxide carbon dioxide water vapor methane

Which processes result in recombination?

Dr. Williams is a psychologist who believes that motivation is produced when we feel an uncomfortable internal state that pushes us to find a way to feel better. Dr.

Consider the diagram of the basic structure of bacteria. MWhich of the labeled structures in the diagram allows bacteria to infect organisms under harsh conditions, such as in the acidic stomach? A B C D

Ammonia, the major etiologic factor in the development of encephalopathy, inhibits neurotransmission. Increased levels of ammonia are damaging to the body. The largest source of ammonia is from:

What structure on the continental crust is most similar to an ocean ridge? -Plains -Mountain range -Canyon -Plateau

Which is the best way to increase the validity of data in an experiment

What is responsible for converting glucose into a form of energy usable by cells?

What best describes the alternation of generations? 1. meiosis produces a diploid zygote 2. a gametophyte is a diploid phase 3. a gametophyte is a haploid phase