A hectare of wheat fixes 32,000 kg of carbon per year through photosynthesis and uses 7,000 kg of carbon per year for cellular respiration. The net primary productivity of the wheat field is therefore _____ kg of carbon/hectare/year.
Fill in the blank(s) with the appropriate word(s).
25,000 or 25000
Biology & Microbiology
You might also like to view...
Large bodies of water maintain relatively constant temperatures compared to terrestrial locations. Why is this so, and how is this feature of water important for life?
What will be an ideal response?
Biology & Microbiology
Which of these statements does NOT describe a characteristic of the genetic code?
A) The number of codons and amino acids is the same. B) The code is used by nearly every living organism. C) Some amino acids have multiple codons. D) The code is degenerate.
Biology & Microbiology
In which cavity does the human heart lie?
a. thoracic b. pelvic c. abdominal d. cranial e. spinal
Biology & Microbiology
1st law of thermodynamics
What will be an ideal response?
Biology & Microbiology