Answer:
c
Explanation:
the air gives carbon dioxide to the plant so a is off the table, a plant does not make water so there goes b. Ammonia is not a molecule that a plant can make. so its c.
Once you understand this, its pretty simple. 50 hertz= 50 vibrations. 100 hertz=100 vibration. So to answer your question 200 hertz=200 vibrations. Your answer is C.
Which is a size-dependent property?
A. boiling point
B. conductivity
C. density
D.Mass
I think letter D
Why?
A size dependent property is a physical property that changes when the size of an object changes.Examples of size dependent properties: Length, Width, Height, Volume, Mass.

Answer: The correct answer is option B
Explanation:
The correct hierarchy level is
Organelles-cells-tissue-organ-organ system-organism-population-community-ecosystem-biosphere.
Community refers to the group of populations of two or more species located in the specific area. Thus, populations exist within community which exist within ecosystem.
Thus, option B is incorrect.
The procedure involves severing the corpus callosum, the main bond between the brain's<span> left and right hemispheres. After a </span>split-brain<span> surgery the two hemispheres do not exchange information as efficiently as before.
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