Which of the following is NOT true of hemoglobin?

A. It is a large protein with four subunits.
B. It is packaged into red blood cells.
C. It binds four O2 molecules cooperatively.
D. O2 is bound to heme group containing iron atom.
E. It contains an oxygen binding group that includes a copper atom.


E. It contains an oxygen binding group that includes a copper atom.

Biology & Microbiology

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Characters that have a continuous distribution, such as height, weight, and skin color, are called ____, and the

individual genes that control them are known as ____.

a. quantitative phenotypes; quantitative trait markers b. quantitative genotypes; quantitative trait loci c. quantitative traits; quantitative trait markers d. quantitative traits; quantitative trait loci e. quantitative markers; quantitative trait markers

Biology & Microbiology

In cnidarians, nematocysts are important in

a. food digestion. b. excretion of wastes. c. obtaining oxygen from the water. d. obtaining prey. e. movement.

Biology & Microbiology

In herbivores, cellulose is primarily broken down by

A. bacteria living within the herbivore gastrointestinal tract. B. helminthes living within the herbivore. C. enzymes produced by the intestinal glands. D. enzymes produced by the salivary glands. E. enzymes produced by the stomach glands.

Biology & Microbiology

In which trophic level is biological magnification most likely to have a deleterious impact?

1.primary producer 2.primary consumer 3.secondary consumer 4.tertiary consumer

Biology & Microbiology