The Bohr shift on the oxygen-hemoglobin dissociation curve is produced by change

Question

The Bohr shift on the oxygen-hemoglobin dissociation curve is produced by changes in The partial pressure of oxygen. Hemoglobin concentration. pH. Temperature. The partial pressure of carbon monoxide. In terms of alternation of generations, the pollen grains of seed-producing plants are most similar to a moss sporophyte. fem gametophyte that will bear only antheridia. moss gametophyte bearing both male and female gametangia. hermaphroditic fem gametophyte. fern sporophyte. What is the main force by which most of the water within xylem vessels moves toward the top of a tree? osmosis in the root active transport of ions into the stele atmospheric pressure on roots evaporation of water through stoma the force of root pressure Photoautotrophs use H_2S as an energy source and CO_2 as a carbon source. light as an energy source and CO_2 as a carbon source. CO_2 as both an energy source and a carbon source. light as an energy source and methane as a carbon source. N_2 as an energy source and CO_2 as a carbon source. The largest seaweeds belong to which group? golden algae red algae cyanobacteria brown algae RNA viruses require their own supply of certain enzymes because host cells lack enzymes that can replicate the viral genome. host cells rapidly destroy the viruses. these enzymes translate viral mRNA into proteins. these enzymes penetrate host cell membranes. these enzymes penetrate cannot be made in host cells. All of the following are characteristics of the phylum Cnidaria except a medusa stage. a pseudocoelom. enidocytes. a polyp stage. a gastrovascular cavity. Which of the following pairs of hormones do not have antagonistic effects?

Explanation / Answer

89. C. pH

90. b. fern gametophyte that will bear only antheridia

91. d. evaporation of water through stomata

92. b. light as an energy source and a carbon source

93. d. brown algae

94.a. host cells lack enzymes that can replicate the viral genome

95. b. a pseudocoelom

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