The Answer is All of the above
No net primary production occurs BELOW THE OCEAN DEPTH WHERE LIGHT IS 1% OF SURFACE LIGHT.
Net primary production = <span>gross photosynthetic carbon fixation - the carbon respired to support maintenance requirements of the whole plant.
In short, net primary production is the "available" carbon left for to aid in plant growth and consumption of other heterotrophic organisms.</span>
Answer:
a. F. W. Went isolated the chemical substance responsible for
communicating stimulus information- TRUE
b. The chemical substance responsible for communicating stimulus
information is a hormone- TRUE
c.Charles and Francis Darwin confirmed that the tip of a plant stem is
responsible for initiating the phototropic response- TRUE
d.When the tip of a stem is covered with a transparent cap, the stem bends
toward the light source anyway- TRUE
e. When the base of a stem is covered with an opaque shield, the stem
bends away from the light source- FALSE
f. An example of another control mechanism is that some plants require
more than 12 hours of darkness to produce flowers- TRUE
Photosynthesis I know that I took the test
B - 17
The atomic number always matches the number of protons, or 17 p as listed in the image.
Hope this helps!
