Describe in a single sentence the process that leads to each of the following types of fossils: A. carbonized fossils B. rocklike fossils C. shape fossils
What will be an ideal response?
ANS:
A: Organisms leave a thin layer of carbon in the rock; B: An organism's remains are transformed into rock; C: The actual fossil is lost by dissolution but leaves its shape in the rock.
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Modified Thayer-Martin (MTM) agar
A) incorporates antibiotics into the medium. B) enhances the growth of normal flora. C) prevents the growth of Neisseria gonorrhoeae, but promotes the growth of Neisseria meningitidis. D) prevents the growth of Neisseria meningitides, but promotes the growth of Neisseria gonorrhoeae.
Which of the following are thought to have occurred because of the increase of oxygen (O2) in the atmosphere during and after the Silurian Period?
A. Conquest of land by arthropods. B. Conquest of land by arthropods and vertebrates. C. Increases in animal body sizes and conquest of land by plants. D. Conquest of land by arthropods and vertebrates, and plants. E. Conquest of land by arthropods and vertebrates and an increase in animal body sizes.
Sweating to keep cool in the summer is the result of ____
a. hydrogen bonds breaking to release energy b. hydrogen bonds forming, which requires energy c. evaporation of water giving off energy d. cohesion of water molecules giving off energy e. cohesion of water molecules requiring energy
Mitosis of a haploid cell, a diploid cell, or both, results in the growth of multicellular bodies
What will be an ideal response?