You place an inoculum of your bacterium on a glass slide and add a drop of hydrogen peroxide reagent. Promptly you see bubbles appear, indicating the presence of a particular enzyme that the bacterium produces. What type of identification test does this exemplify?
A. Immunochromatography
B. Precipitation test
C. Microarray
D. Biochemical test
Answer: D
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What protects many types of seaweed from desiccation?
a. Cuticle b. Stipe c. Mucilage d. Thallus
What factors are found in both tropical and temperate forests?
A) rainy and dry seasons B) seasonal changes in temperature C) enough precipitation to support large trees D) the same species of trees
Metabolic reactions that use the energy from carbohydrate, fatty acid, or amino acid breakdown to produce ATP molecules.
What will be an ideal response?
Which of the following statements best describes the history of life on Earth?
A) The Earth had multicellular life-forms for most of its history. B) The Earth had single-celled life-forms for most of its history. C) The Earth was lifeless far longer than it had living things. D) The Earth had photosynthetic organisms about 100 million years after it formed.