Ferns and flowering plants belong to the clade ________
Fill in the blank(s) with correct word
Plantae
Biology & Microbiology
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Plant cells assimilate nitrogen in the form of:
a. ammonia and N2 b. N2 and nitrite c. nitrate and ammonia d. urea and nitrate e. N2 and urea
Biology & Microbiology
Microscopic examination of cerebrospinal fluid reveals gram-positive rods. What is the organism?
A) Haemophilus B) Listeria C) Naegleria D) Neisseria E) Streptococcus
Biology & Microbiology
Lipids form ____________ ____________ bonds.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Histones that are tightly wound by DNA and are the basic unit of chromatin are called
A. facilitators sites. B. nucleosomes. C. protein clusters. D. repressor genes. E. operons.
Biology & Microbiology