Which dissolved gas cannot be transported by hemoglobin? 

A. oxygen (O2)
B. nitrogen (N2)
C. nitric acid (NO)
D. carbon monoxide (CO)
E. carbon dioxide (CO2)


B. nitrogen (N2)

Biology & Microbiology

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The cycad lineage probably arose from ____

a. club mosses b. seed ferns c. whisk ferns d. ginkgos e. palms

Biology & Microbiology

In Figure 3-2, ionic bonds would form between the R groups of which amino acids?

a. 1 and 3 b. 2 and 4 c. 3 and 5 d. 4 and 6 e. 3 and 6

Biology & Microbiology

In which biome would one find sclerophyllous vegetation?

A) tundra B) taiga C) shrubland D) tropical forest

Biology & Microbiology

Hershey and Chase used _____ to radioactively label the T2 phage's proteins.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology