Some Bacteria Are Metabolically Active in Hot Springs Because ________

question 64

Multiple Choice

Some bacteria are metabolically active in hot springs because ________.

• A) they are able to maintain a lower internal temperature
• B) high temperatures make catalysis unnecessary
• C) their enzymes have high optimal temperatures
• D) their enzymes are completely insensitive to temperature

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Definitions:

Genetic Changes

Alterations in the DNA sequence of an organism, which can be due to mutations, gene flow, genetic drift, or natural selection.

Vertebrates

A subphylum of chordates that includes fishes, amphibians, reptiles, birds, and mammals; possess a bony vertebral column.

Common Ancestor

The latest ancestor from whom all members of a specific group directly originate.

Allele Frequency

The proportion of a specific allele in the population. Compare with genotype frequency and phenotype frequency.