6-10 Flashcards
What determines an individual’s phenotype?
Genetic differences
What may be required for species to adapt to drastic environmental changes?
Natural Selection
What is the first step in understanding species distribution?
Evolutionary history
What is a niche?
Role of an organism
What role do mycorrhizal fungi play?
Help trees extract nutrients
What are mutations?
Source of new alleles
What poses challenges for species to adapt in time?
Rapid & dramatic changes by humans
What is a key factor for an organism’s survival?
Abiotic conditions
What are the forms of species interactions?
Predation, herbivory, parasitism
What defines an ecosystem?
Self-contained unit
What do beneficial mutations contribute to?
Genetic diversity
What are the consequences of the bottleneck effect?
Reduced genetic diversity
What three aspects are considered at the individual level?
Abiotic conditions, resources, habitat
What is predation’s role in evolution?
Cause of natural selection
Why is identifying ecosystem boundaries important?
Understand components
What are observable characteristics of genotype?
Phenotype
What happens if a population is no longer adapted?
Negative growth rate
How do predators limit prey populations?
Consuming & behavior changes
How do new species arise?
Population divergence through evolution
What is mutualism?
When 2 or more species benefit each other
What is the repeated change in genotype over time?
Evolution
What does community ecology study?
Groups of populations in the same area
What does increased likelihood of survival & reproduction indicate?
Greater fitness
What does a food web summarize?
Species & predator-prey interactions
