Nautiliaceae are chemolithoautotrophs from deep-sea _______ vent ecosystems
Fill in the blank(s) with the appropriate word(s).
hydrothermal
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The red blood cells of people with sickle cell anemia have abnormal shapes due to ____
a. hemoglobin molecules with mutant beta globin subunits sticking together and forming long fibers in the cytoplasm b. destruction of the hemoglobin molecules c. loss of hemoglobin through leaky cell membranes d. the attachment of phosphate groups to the hemoglobin molecules e. the binding of methyl groups to the heme group of the hemoglobin molecule causing desiccation of the cells
Which protein transports oxygen in the bloodstream?
A) plasminogen B) hemoglobin C) erythropoietin D) thrombin
Control of gene expression (check all that apply)
A. allows bacteria to replicate without control. B. allows bacteria to adapt to changing environments. C. it stops multicellular organisms functioning as a whole. D. allows multicellular organisms to maintain homeostasis. E. is critical for development in multicellular organisms.
Viruses that utilize reverse transcriptase belong to the virus families
A) Retroviridae and Picornaviridae. B) Herpesviridae and Retroviridae. C) Hepadnaviridae and Retroviridae. D) Herpesviridae and Poxviridae. E) Rhabdoviridae and Herpesviridae.