Studied by 2 people
How do organism responed to environmental changes
behavioral and physiological mechansims
When do organisms exchange information with one another
response to internal changes and external cues
What are communication mechanisms
signaling behaviors, visual, audible, tactile, electrical, and chemical signs
What communication does natural selection use
innate and learned behaviors through cooperative behavior
What are the strategies for regulating body temperature and metabolism
endotherms— thermal energy from metabolism
ectotherms- move into sun/shade
What is the relationship between size and metabolic rate
smaller the organism higher the metabolic rate
What is net gain of energy results
energy storage or growth
What is net loss of energy results
loss of mass or death
Where do photosynthetic organisms get energy
sunlight
Where do chemosynthetic organisms get energy
small inorganic molecules
Where do heterotrophic organisms get energy
metabolized charbohydrates, lipids, and proteins via hydrolyisis
What is the population growth equation
What is the exponential growth equation
When is a logistic growth model use
with limits to growth from density-dependent and density-independent factors are imposed
What is the logistic growth model equation
What is the Simpson’s Diversity Index
How can communites change
depending on interactions between populations
What does interactions among populations determine
access of energy and matter with a community
What interactions can drive population dynamics
competition, predation, symbioses (i.e parasitissm, mutualism, commensalism
What can result from cooperation or coordination etween organisms
increased movement of energy and matter
What ecosystems are least resilient to changes in environment
natural/artificial with fewer component parts, less diversity
What are keystone species
essential abiotic and biotic factors contribute to maintaining the diversity and function
What is an adaptation
genetic variation that is favored by selection
How do invasive species damge ecosystemes
disrupt energy balenance, overturn the ecosysteme
How does human impact facilitate environemntl
introduction of new diseeases
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Flashcard (41)