ASU BIO 182 EXAM FINAL - COMPLETE QUESTIONS
AND DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR JUST RELEASED
Question 1: What are some advances in agriculture?
Answer:
-Breeding superior plants
-Increased use of irrigation
-Use of chemical fertilizers
-Use of chemical pesticides
Question 2: How is energy transferred through the food pyramid?
Answer:
Decomposer -> primary producer -> primary consumer -> secondary
consumer -> tertiary consumer
Question 3: What is a trophic level?
Answer:
-"Feeding" level, organisms that obtain energy from the same type of
source
Question 4: What is biomagnification?
Answer:
-Some pesticides aren't broken down and become more concentrated at
each trophic level
Question 5: What does NPP mean and how much is being used by
humans?
Answer:
-Net Primary Productivity = total amount of chemical energy supplied by
plants
,-Humans use 24% of Earth's NPP
Question 6: What are some reasons the birth rate has declined in
the last 50 years?
Answer:
-Women choosing to have less children
-Regions with lowest birthrates have the most abundant resources and
education of women is encouraged
Question 7: What is demographic transition?
Answer:
-The transition from high birth and death rates to lower birth and death
rates
Question 8: What are density dependent factors?
Answer:
-Predation, disease, competition between species (usually biotic)
Question 9: What is carrying capacity?
Answer:
-The maximum population that can be supported indefinitely in an
environment
-Birth rate = death rate
-(K)
Question 10: What is exponential growth and when does it occur in
nature?
Answer:
-Exponential growth is positive growth
-Observed in 2 circumstances: a few individuals found a new population
in a new habitat, or a population has been devastated by a catastrophe
and begins to recover, starting with a few surviving individuals
, Question 11: What are some density-independent factors?
Answer:
-Change is not dependent on the # of individuals in the population
-Variations in weather patterns, etc. (usually abiotic)
Question 12: What are survivorship curves?
Answer:
-Type 1: Survivorship throughout life is high, most individuals reach their
max. life span (humans)
-Type 2: Most individuals experience constant survivorship over their
lifetimes
-Type 3: Result from high death rates early in life, with high survivorship
after maturity (many plants)
Question 13: What is life history?
Answer:
-Record of major events relating to its growth, development,
reproduction, and survival
Question 14: What is survivorship?
Answer:
-Proportion of offspring that will survive on average to a particular age
Question 15: What is fecundity?
Answer:
-# of female offspring produced by each female in the population
Question 16: What is the intrinsic rate of increase?
Answer:
-When birthrates per individual are as high as possible and the death per
individual are as low as possible
Question 17: What is a clumped population density?
AND DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR JUST RELEASED
Question 1: What are some advances in agriculture?
Answer:
-Breeding superior plants
-Increased use of irrigation
-Use of chemical fertilizers
-Use of chemical pesticides
Question 2: How is energy transferred through the food pyramid?
Answer:
Decomposer -> primary producer -> primary consumer -> secondary
consumer -> tertiary consumer
Question 3: What is a trophic level?
Answer:
-"Feeding" level, organisms that obtain energy from the same type of
source
Question 4: What is biomagnification?
Answer:
-Some pesticides aren't broken down and become more concentrated at
each trophic level
Question 5: What does NPP mean and how much is being used by
humans?
Answer:
-Net Primary Productivity = total amount of chemical energy supplied by
plants
,-Humans use 24% of Earth's NPP
Question 6: What are some reasons the birth rate has declined in
the last 50 years?
Answer:
-Women choosing to have less children
-Regions with lowest birthrates have the most abundant resources and
education of women is encouraged
Question 7: What is demographic transition?
Answer:
-The transition from high birth and death rates to lower birth and death
rates
Question 8: What are density dependent factors?
Answer:
-Predation, disease, competition between species (usually biotic)
Question 9: What is carrying capacity?
Answer:
-The maximum population that can be supported indefinitely in an
environment
-Birth rate = death rate
-(K)
Question 10: What is exponential growth and when does it occur in
nature?
Answer:
-Exponential growth is positive growth
-Observed in 2 circumstances: a few individuals found a new population
in a new habitat, or a population has been devastated by a catastrophe
and begins to recover, starting with a few surviving individuals
, Question 11: What are some density-independent factors?
Answer:
-Change is not dependent on the # of individuals in the population
-Variations in weather patterns, etc. (usually abiotic)
Question 12: What are survivorship curves?
Answer:
-Type 1: Survivorship throughout life is high, most individuals reach their
max. life span (humans)
-Type 2: Most individuals experience constant survivorship over their
lifetimes
-Type 3: Result from high death rates early in life, with high survivorship
after maturity (many plants)
Question 13: What is life history?
Answer:
-Record of major events relating to its growth, development,
reproduction, and survival
Question 14: What is survivorship?
Answer:
-Proportion of offspring that will survive on average to a particular age
Question 15: What is fecundity?
Answer:
-# of female offspring produced by each female in the population
Question 16: What is the intrinsic rate of increase?
Answer:
-When birthrates per individual are as high as possible and the death per
individual are as low as possible
Question 17: What is a clumped population density?
