Choose the letter of the best match from the following:A. nitrogenB. calciumC. potassiumD. phosphorusE. magnesiumContained in amino acids, proteins, nucleic acids, chlorophyll.
Fill in the blank(s) with the appropriate word(s).
A
Nitrogen is an important element in amino acids, nucleic acids and chlorophyll.
Biology & Microbiology
You might also like to view...
The ____ are respiratory structures composed of moist evaginations
a. tracheal tubes b. lungs c. gills d. skin e. nasal passages
Biology & Microbiology
What kind of fruit is formed from the fusion of individually pollinated flowers?
a. aggregate b. simple c. multiple d. fleshy e. dry
Biology & Microbiology
Glaucoma is most often an age-related, painless, and chronic disease, with slowly developing symptoms.
a. true b. false
Biology & Microbiology
The average number of children born to a woman during her lifetime is known as:
a. age structure. b. replacement-level fertility. c. natality. d. total fertility rate. e. infant mortality rate.
Biology & Microbiology