Biology 100: Exam #1 (Ekdale, SDSU)
Exam 2026 Questions and Answers
What is Biology characterized by? - Correct answer-Reproduction, growth and
development, cells, order, energy use, response to the environment, and evolution.
Ecology - Correct answer-Scientific study of interactions among organisms and
between biotic (living) and abiotic (nonliving) organisms and their environment
How does the ecosystem process energy? - Correct answer-Energy flows into the
ecosystem from the sun, solar energy is then converted into chemical energy from
producers.
Biogeochemical cycling - Correct answer-Cycling of nutrients from abiotic to
biotic sources through biological, geological, and chemical processes.
Greenhouse effect - Correct answer-Natural situation in which heat is retained in
Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases
Consequences of global warming - Correct answer-Warming waters, rising sea
levels, extreme weather events, and ocean acidification.
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, Carbon Residence Time - Correct answer-The amount of time carbon stays in the
atmosphere. Approximately 200 years
Population - Correct answer-A group of individuals that belong to the same species
and live in the same area
Population ecology - Correct answer-The study of factors that cause populations to
increase or decrease. Human population dramatically increased in the late 1800's
with improved sanitation, nutrition, and medical care.
Exponential growth - Correct answer-Rapid population increase due to an
abundance of resources
Logistic growth - Correct answer-Growth pattern in which a population's growth
rate slows or stops following a period of exponential growth
Carrying capacity - Correct answer-Largest number of individuals of a population
that a environment can support. The carrying capacity for humans is expected to
reach 10 billion people by 2100. Climate change would reduce this capacity.
Community - Correct answer-All the different populations that live together in an
area
Effects of climate change on species interactions - Correct answer-Mutualism,
parasitism/pathogens, and competition
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Exam 2026 Questions and Answers
What is Biology characterized by? - Correct answer-Reproduction, growth and
development, cells, order, energy use, response to the environment, and evolution.
Ecology - Correct answer-Scientific study of interactions among organisms and
between biotic (living) and abiotic (nonliving) organisms and their environment
How does the ecosystem process energy? - Correct answer-Energy flows into the
ecosystem from the sun, solar energy is then converted into chemical energy from
producers.
Biogeochemical cycling - Correct answer-Cycling of nutrients from abiotic to
biotic sources through biological, geological, and chemical processes.
Greenhouse effect - Correct answer-Natural situation in which heat is retained in
Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases
Consequences of global warming - Correct answer-Warming waters, rising sea
levels, extreme weather events, and ocean acidification.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Carbon Residence Time - Correct answer-The amount of time carbon stays in the
atmosphere. Approximately 200 years
Population - Correct answer-A group of individuals that belong to the same species
and live in the same area
Population ecology - Correct answer-The study of factors that cause populations to
increase or decrease. Human population dramatically increased in the late 1800's
with improved sanitation, nutrition, and medical care.
Exponential growth - Correct answer-Rapid population increase due to an
abundance of resources
Logistic growth - Correct answer-Growth pattern in which a population's growth
rate slows or stops following a period of exponential growth
Carrying capacity - Correct answer-Largest number of individuals of a population
that a environment can support. The carrying capacity for humans is expected to
reach 10 billion people by 2100. Climate change would reduce this capacity.
Community - Correct answer-All the different populations that live together in an
area
Effects of climate change on species interactions - Correct answer-Mutualism,
parasitism/pathogens, and competition
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
