Bio 230 Exam 2026 Questions and
Answers
Heritable variation: Individuals vary - Correct answer-Genetics
Population tend to grow exponentially but limited by resources (struggle for
existence) - Correct answer-Ecology
Variation matters in the struggle - Correct answer-Evolution
What is Ecology? - Correct answer-Study of abundance, distribution, and
interactions of organisms with their environment (biotic and abiotic).
Abiotic (physical & chemical conditions): - Correct answer-Temperature moisture,
concentration of gases (O2 and CO2), light intensity etc.
Biotic (interactions with other organisms) - Correct answer-Mating, predator and
prey, predation, competition etc.
Dispersal - Correct answer-movement of individuals away from centers from their
area of origin, contributes to global distribution
Factor 1 - Correct answer-Dispersal and history
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,•New Zealand vs Hawaii
•Both places have one common mammal!
•The BAT!
Factor 2 - Correct answer-Factor 2. Behavior (e.g., Habitat Selection)
•Some organisms do not occupy all their potential range
•Distribution may be limited by habitat selection behavior
Factor 3 - Correct answer-3. Biotic Factors
Interactions with other species
Competition and predation (...limit distribution)
Factor 4 - Correct answer-Abiotic factors: Rocks and Soil
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, •At local level, physical structure, pH, mineral composition affect plants and
animals...
4 big questions - Correct answer-Diversity of Life
Distribution and abundance
Fit of form and function
4. Procession of life (common design)
Individual - Correct answer-Birth and death are discrete events and happen only
once
Population - Correct answer-Birth and death, continuous, produce dynamics
(birth/year, death/year etc.)
Community - Correct answer-Many populations of different species and how their
interaction affect birth and death rates
Ecosystem - Correct answer-Several biotic communities plus abiotic factors
Landscape - Correct answer-patchwork of ecosystems (How energy and nutrients
exchanged between ecosystems)
Global scale: - Correct answer-Different types of ecosystems or biomes
(biodiversity in different biomes)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
Answers
Heritable variation: Individuals vary - Correct answer-Genetics
Population tend to grow exponentially but limited by resources (struggle for
existence) - Correct answer-Ecology
Variation matters in the struggle - Correct answer-Evolution
What is Ecology? - Correct answer-Study of abundance, distribution, and
interactions of organisms with their environment (biotic and abiotic).
Abiotic (physical & chemical conditions): - Correct answer-Temperature moisture,
concentration of gases (O2 and CO2), light intensity etc.
Biotic (interactions with other organisms) - Correct answer-Mating, predator and
prey, predation, competition etc.
Dispersal - Correct answer-movement of individuals away from centers from their
area of origin, contributes to global distribution
Factor 1 - Correct answer-Dispersal and history
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,•New Zealand vs Hawaii
•Both places have one common mammal!
•The BAT!
Factor 2 - Correct answer-Factor 2. Behavior (e.g., Habitat Selection)
•Some organisms do not occupy all their potential range
•Distribution may be limited by habitat selection behavior
Factor 3 - Correct answer-3. Biotic Factors
Interactions with other species
Competition and predation (...limit distribution)
Factor 4 - Correct answer-Abiotic factors: Rocks and Soil
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, •At local level, physical structure, pH, mineral composition affect plants and
animals...
4 big questions - Correct answer-Diversity of Life
Distribution and abundance
Fit of form and function
4. Procession of life (common design)
Individual - Correct answer-Birth and death are discrete events and happen only
once
Population - Correct answer-Birth and death, continuous, produce dynamics
(birth/year, death/year etc.)
Community - Correct answer-Many populations of different species and how their
interaction affect birth and death rates
Ecosystem - Correct answer-Several biotic communities plus abiotic factors
Landscape - Correct answer-patchwork of ecosystems (How energy and nutrients
exchanged between ecosystems)
Global scale: - Correct answer-Different types of ecosystems or biomes
(biodiversity in different biomes)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
