R retranslocati on r retranslocati on the breakdown

This preview shows page 3 - 5 out of 7 pages.

R. retranslocationR. retranslocation
The breakdown of chemical bonds that were formed during the construction of plant and animal tissues is called ________.
The release of organically bound nutrients into an inorganic form is called ________.
The introduction of high levels of nutrients into a body of water is called ________.I. eutrophicationI. eutrophicationPrecipitation brings appreciable quantities of nutrients into ecosystems that are collectively called ________.
Large quantities of nutrients are bound tightly in ________ structure; they are not readily available until released by the activities of decomposers.
Some nutrients are ________ from the soil and carried out of ecosystems by underground water flow to streams.Q. leached
The element ________ is a basic constituent of all organic compounds and is involved in the fixation of energy by photosynthesis.
The difference between the rate of carbon uptake in photosynthesis and the rate of carbon loss due to autotrophic and heterotrophic respiration is the net ________ productivity.
Nitrogen is generally available to plants in only two forms: ammonium and ________.
Biological nitrogen fixation is accomplished by symbiotic ________ living in mutualistic association with plants.

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture