Which Concept, Proposed by Charles Lyell, Had a Profound Effect

question 9

Multiple Choice

Which concept, proposed by Charles Lyell, had a profound effect on 19th century scientific thought?

• A) recent origins for earth
• B) the role of catastrophic events in producing geological phenomena
• C) natural selection
• D) the immense age of the earth
• E) the inheritance of acquired characteristics

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Definitions:

Nanoplankton

Extremely minute (<10 μm in length) algae that are major producers in the ocean because of their great abundance; part of phytoplankton.

Dinoflagellates

A group of single-celled organisms found in marine and freshwater environments, known for their role in red tides and bioluminescence.

Symbiotic

A close and often long-term interaction between two different biological species, which may be beneficial, harmful, or neutral to the parties involved.

Zooxanthellae

Endosymbiotic, photosynthetic dinoflagellates found in certain marine invertebrates; their mutualistic relationship with corals enhances the corals’ reef-building ability.