To which of the following substances does hemoglobin most readily bind?
A) bilirubin B) carbon monoxide C) oxygen D) erythropoietin
Answer: B
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The two phyla of soft-bodied organisms, Cnidaria and Ctenophora, have bilateral symmetry and tissues
a. True b. False
What is facilitated diffusion
What will be an ideal response?
Factors which provide a measure of biodiversity in a particular ecosystem include
A) the total number of species in that ecosystem B) the variability of the individual genes C) the relative abundance of each species D) the number of different habitats being utilized E) All of the choices are correct.
Which observation would be evidence for allopatric speciation among finch species of the Galápagos Islands?
A. The birds are closely related to birds found on the mainland. B. No pairs of sister species formed on the same island. C. Pairs of sister species can be found on adjacent islands. D. Specific beak sizes are adaptations to the seeds of different species. E. Many different species have been found on the islands.