Hydrogen sulfide is transformed into sulfate or elemental sulfur by
A) protozoans.
B) bacteria.
C) fungi.
D) algae.
B
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Four of the five answers listed below are differences between archaea and bacteria. Select the exception
a. cell wall components b. membrane components c. ribosomal RNA sequences d. DNA nucleotides e. DNA and histone organization
The reason for the darker fur on the tail, ears, nose,
and legs of a Siamese cat is a. incomplete dominance. b. the activity of a heat-sensitive enzyme involved in melanin production. c. quantitative inheritance. d. epistasis. e. the presence of different alleles for fur color in these regions.
One of the conclusions drawn from Darwin's theory of evolution is that:a
existing organisms can adapt to environmental changes. b. genetic information can pass from organism to organism by means of DNA. c. living organisms are composed of basic units called cells. d. organisms living today descended with modifications from previously existing forms. e. living organisms contain substances produced by cells.
kills disease causing organisms, activates pepsin, breaks down meat connective tissue
What will be an ideal response?