Plants generally take up nitrogen for their use mainly as
a. NH4
+.
b. CN.
c. N2.
d. NH3.
e. NO3
E
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Archaea, Bacteria, and Eukarya are:
A. phyla B. kingdoms C. families D. domains E. orders
Starting from the outside and moving in toward the center, which gives the correct order of tissues in
the stem of a young tree?
a. secondary phloem, primary phloem, primary xylem, secondary xylem b. primary xylem, secondary xylem, secondary phloem, primary phloem c. primary phloem, secondary xylem, secondary phloem, primary xylem d. secondary phloem, primary xylem, secondary xylem, primary phloem e. primary phloem, secondary phloem, secondary xylem, primary xylem
What is shown in the figure above?
a. transcription in eukaryotes b. translation in prokaryotes c. translation in eukaryotes d. DNA replication e. transcription in prokaryotes
Sister chromatids are also referred to as homologues or homologous chromosomes
Indicate whether the statement is true or false