Refer to the Table

question 159

Essay

Refer to the table. In 1879, W.J.Beal began an experiment that he could not hope to finish in his lifetime.He prepared 20 lots of seeds for long-term storage.Each lot consisted of 50 seeds from each of 23 species.He mixed each lot of seeds with sand and placed the mixture in an uncapped bottle, then buried all the bottles in a sandy knoll.At 5- or 10-year intervals over the next century, biologists excavated a bottle and checked the viability of its contents.The table shows the number of germinating seeds (of the original 50) from three of the species in years 50-100 of this ongoing experiment.Calculate the percentage of the seeds that were still viable for these three species in years 50-100, and graph percent viable seeds as a function of years after burial.

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Definitions:

Abnormal Behavior

Actions, thoughts, or feelings that are atypical within a cultural context, potentially impairing functioning or causing distress.

Interpretation

The act of explaining the meaning of something, often used in the context of analyzing texts or behaviors.

Challenges Assertions

Involves questioning or disputing claims or statements, often to clarify truth or foster critical thinking.

Neurotransmitters

Chemical substances that transmit signals across a synapse from one neuron to another in the brain.