If substantial lactic acid were found in a person's bloodstream, which type of glucose breakdown is occurring?
A) cellular respiration
B) fermentation
C) electron transport
D) citric acid cycle
B
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What is the difference between a ribonucleotide and a deoxyribonucleotide?
A) Ribonucleotides contain a phosphate group. B) Ribonucleotides have a hydroxyl group on the 2 carbon of their sugar subunit. C) Ribonucleotides contain a sugar with five carbon atoms. D) Ribonucleotides have a hydrogen atom on the 1 carbon of their sugar subunit.
Why do some single-celled eukaryotes occur primarily as haploid cells, whereas others occur primarily as diploid cells?
A. Only the eukaryotes that reproduce sexually will occur as diploid cells. B. Only the eukaryotes that reproduce sexually will occur as haploid cells. C. Only the eukaryotes that reproduce asexually will occur as diploid cells. D. Only the eukaryotes that reproduce asexually will occur as haploid cells. E. None of the answers options is correct.
Tinbergen is credited with founding the field of behavioral ______, the study of how natural selection shapes behavior.
A. genetics B. ecology C. symptomatology D. demographics
The large intestine concentrates undigested material by
A. absorption of salts and water across the epithelial surface of the lumen. B. ingestion of excess salts and water by intestinal bacteria. C. transporting excess salts and water back to the small intestine for absorption. D. storing excess salts and water in the cecum.