The rate of nutrient cycling in an ecosystem is a function of physical characteristics of the ecosystem, not biological processes such as photosynthesis and decomposition
Indicate whether the statement is true or false
FALSE
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These organisms most specifically utilize light energy to make organic molecules from inorganic molecules.
A. photoautotrophs B. photoheterotrophs C. photoisotrophs D. photohemitrophs E. heterotrophs
Plants generally must use which of the following methods of phosphorus uptake?
A. nonenergy transport B. transport control by soil moisture C. passive uptake D. ATP proton cotransport E. None of these are true
A wilted flower placed in a vase of water for several hours became stiff and stood erect. When it was placed in a salt
solution, it wilted. From this information, we can say that the cells of the flower are:a. hypotonic to both fresh water and the salt solution. b. hypertonic to both the fresh water and the salt solution. c. hypertonic to fresh water but hypotonic to the salt solution. d. hypotonic to fresh water but hypertonic to the salt solution. e. isotonic to fresh water but hypotonic to the salt solution.
What is the name of the main embryonic cell layer from which the muscles of the body wall are derived in most metazoans?
a. mesoderm b. endoderm c. ectoderm d. mesoglea