AP Environmental Science

Unit 2 FRQ 1 Practice

3.5 Population Growth: Biotic Potential

Maximum potential growth rate with 0 limiting resources.

3.4 Carrying Capacity

The maximum population size that an environment can sustain indefinitely without being degraded.

3.2 K selected species

Species that allocate resources to producing fewer offspring with higher survival rates, often thriving in stable environments.

Mammals and Birds

3.2 R selected species 

Species that have a shorter lifespan, most likely an invasive species.

Insects, fish, plants 

3.3 Survivorship curve

Line that shows the survival rate of a cohort.

3.3 Type l Organism 

high survivorship early in live due to high parental care. High survivorship in mid life due to large size (mammals)

3.3 Type ll Organism 

Steady decrease of survivorship throughout life 

3.3 Type lll Organism 

High mortality rate due to low rates of parental care, few make it to midlife, and even lower rates of survival into adulthood. 

2.1 Evenness

Measurement of how all individual organisms are balanced

1.9 10% rule

Only 10% of energy makes it from one energy level to another

1.11 Interactions and Trophic Cascade

Food webs show how numbers in population can impact the rest of the food web