BIO 182 EXAM 3 - WEAVER (ASU SPRING
2024) TEST WHICH IS GOING OVER
POPULATION, COMMUNITY, AND
ECOSYSTEM ECOLOGY QUESTIONS AND
ANSWERS WITH VERIFIED SOLUTIONS
100% CORRECT (GRADED A+)
What is an Abiotic Factor?
a) Living aspects affecting organisms
b) Non-living aspects affecting organisms ✔✔
Explanation: Abiotic factors are the non-living physical and chemical
components of the environment such as temperature, water, sunlight, and soil
that influence living organisms.
What is a Biotic Factor?
a) Non-living aspects affecting organisms
b) Living aspects affecting organisms ✔✔
Explanation: Biotic factors include all living components like plants, animals,
bacteria, and fungi that affect other organisms within an ecosystem.
What is the Fundamental Niche of an organism?
a) The niche species actually lives
b) The range of conditions that an organism can handle (yellow area) ✔✔
Explanation: The fundamental niche is the full range of environmental conditions
(abiotic and biotic) under which an organism can survive and reproduce without
competition.
, What is the Realized Niche of a species?
a) The range of conditions an organism can handle
b) The niche species actually lives (green area) ✔✔
Explanation: The realized niche is the actual set of conditions where the species
exists, limited by competition, predation, and other interactions.
How does the niche of a species affect its geographic distribution?
a) It expands its distribution
b) It limits its geographic distribution ✔✔
Explanation: The niche defines the environmental limits and interactions that
restrict where a species can survive and thrive geographically.
What does Topt represent?
a) The lowest temperature a species can tolerate
b) The optimal temperature for a species ✔✔
Explanation: Topt is the temperature at which an organism’s physiological
processes function most efficiently, supporting optimal survival and reproduction.
What is CTmin?
a) Critical Temperature MAX
b) Critical Temperature MIN — the lowest temperature a species can tolerate ✔✔
Explanation: CTmin is the lowest temperature limit at which an organism can
survive; below this temperature, survival is not possible.
What is CTmax?
a) Critical Temperature MIN
b) Critical Temperature MAX — the highest temperature a species can tolerate
✔✔
2024) TEST WHICH IS GOING OVER
POPULATION, COMMUNITY, AND
ECOSYSTEM ECOLOGY QUESTIONS AND
ANSWERS WITH VERIFIED SOLUTIONS
100% CORRECT (GRADED A+)
What is an Abiotic Factor?
a) Living aspects affecting organisms
b) Non-living aspects affecting organisms ✔✔
Explanation: Abiotic factors are the non-living physical and chemical
components of the environment such as temperature, water, sunlight, and soil
that influence living organisms.
What is a Biotic Factor?
a) Non-living aspects affecting organisms
b) Living aspects affecting organisms ✔✔
Explanation: Biotic factors include all living components like plants, animals,
bacteria, and fungi that affect other organisms within an ecosystem.
What is the Fundamental Niche of an organism?
a) The niche species actually lives
b) The range of conditions that an organism can handle (yellow area) ✔✔
Explanation: The fundamental niche is the full range of environmental conditions
(abiotic and biotic) under which an organism can survive and reproduce without
competition.
, What is the Realized Niche of a species?
a) The range of conditions an organism can handle
b) The niche species actually lives (green area) ✔✔
Explanation: The realized niche is the actual set of conditions where the species
exists, limited by competition, predation, and other interactions.
How does the niche of a species affect its geographic distribution?
a) It expands its distribution
b) It limits its geographic distribution ✔✔
Explanation: The niche defines the environmental limits and interactions that
restrict where a species can survive and thrive geographically.
What does Topt represent?
a) The lowest temperature a species can tolerate
b) The optimal temperature for a species ✔✔
Explanation: Topt is the temperature at which an organism’s physiological
processes function most efficiently, supporting optimal survival and reproduction.
What is CTmin?
a) Critical Temperature MAX
b) Critical Temperature MIN — the lowest temperature a species can tolerate ✔✔
Explanation: CTmin is the lowest temperature limit at which an organism can
survive; below this temperature, survival is not possible.
What is CTmax?
a) Critical Temperature MIN
b) Critical Temperature MAX — the highest temperature a species can tolerate
✔✔
