Disease-causing microorganisms are called
What will be an ideal response?
pathogens
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Burkholderia is a common (true/opportunistic) pathogen of patients with cystic fibrosis
What will be an ideal response?
Answer the following statements true (T) or false (F)
1. When lactose becomes available the genes encoding ?-galactosidase and lactose permease are upregulated in E. coli. 2. Different globin polypeptides are expressed at similar levels during the embryonic and fetal stages of mammalian development. 3. Bacteria can regulate gene expression by controlling the rate at which mRNA is translated into protein. 4. Small effector molecules directly bind the DNA they regulate.
Molecular data shows that land plants and charophytes
A. are in the same clade and form a monophyletic group. B. are in different clades but form a monophyletic group. C. do not share common ancestry. D. are in different clades and form a polyphyletic group. E. are in the same clade but form a polyphyletic group.
All of the following are abiotic factors within an ecosystem except ________
A) energy B) fire C) nutrients D) All of the above are abiotic factors.