Flashcards in Extra Terms Deck (19):
an organized system that requires a constant input of energy to maintain itself.
Species that differ in traits other than morphology
Tree of Life is based on
True/False: Archea are more similar to eukaryotes than bacteria
the most ancient, most abundant, and most metabolically diverse organisms.
Types of bacteria
a large and diverse group that includes photoautotrophs, chemoautotrophs, and heterotrophs
eukaryotes that are unicellular for most of their life cycle
Solanum lycopersicum, is a single species of plant, originally from the Andes
Robert Marquis and Chris Whelan studied the role of birds in limiting the density of herbivorous insects.
Ecological Hypothesis Test
The ecological time scale is shorter than the evolutionary time scale, but there is some overlap-populations evolve over time, and this can affect the composition of communities and functioning of ecosystems.
As young, clear channel catfish much more susceptible to predation in streams with clear water, and turbid, cloudy streams facilitate survival.
Adults are strong swimmers.
Thus, channel catfish populations extend along major rivers in Illinois.
Channel catfish prefer fast-moving, gravel-bottomed rivers of medium to large size
For most organisms, life histories have evolved to maximize an organism’s expected...
Pacific salmon hatch in the headwaters of streams and migrate to the open ocean. They eventually return to freshwater streams to reproduce.
Life history is adapted to its environment
are genetic variants of the same species (salmon) that stay in estuaries rather than migrating to the open ocean.
Each morph exploits a life history where it avoids competition with the other morph