The Organisms Believed to Be the First to Use Two

question 16

Multiple Choice

The organisms believed to be the first to use two different photosystems in a single photosynthetic electron transport chain are the:

• A)yeast.
• B)archaea.
• C)cyanobacteria.
• D)algae.
• E)green plants.

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Definitions:

Behavioral Phenotypes

Observable characteristics or behaviors that result from the interaction of genotype and environment.

Canalized

A process by which the genetic development of an organism is guided by the environment so that a certain phenotype is produced regardless of variability in the environment or genetics.

Niche Construction

The process by which organisms alter their own and each other’s environments, potentially affecting both their own evolution and that of other species.

Environmental Modification

The process of changing or altering the environment to suit specific needs or to mitigate detrimental impacts on human and ecological health.