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Bis 2B Final Study Exam Questions and Answers (Latest Update 2024)
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Bis 2B Final Study Exam Questions and Answers (Latest Update 2024)
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Bis 2B Final Study Exam Questions andAnswers (Latest Update 2024)
Why are there fewer top predators than primary consumers
and why are they larger?
Role of respiration? - Correct Answer ✅ There are fewer top
predators because there is a decrease of net solar energy
held at each higher trophic level. Some energy is lost through
energy transfer inefficiencies like respiration.
Primary Producer - Correct Answer ✅ Photosynthetic
organisms
Primary Consumer - Correct Answer ✅ Animals that eat
plants
Secondary Consumers - Correct Answer ✅ Animals that eat
other animals
Tertiary Consumers - Correct Answer ✅ Animals that eat
other animals, but aren't preyed upon by other animals.
Detritivore - Correct Answer ✅ Eat small parts of
disorganized organic matter
,Bis 2B Final Study Exam Questions and
Answers (Latest Update 2024)
Keystone Species - Correct Answer ✅ Has an effect on
community composition that is disproportionally large, given
their abundance. They also prevent competitive exclusion.
Ex: Mussels, Starfish, Figs
Typical Food Chain Length - Correct Answer ✅ ~5
Energy Flow Web - Correct Answer ✅ Describes major
pathway of energy to from producer to consumers
Functional Web - Correct Answer ✅ Describes which
species control the distribution and abundance of others
Ecosystem Engineers - Correct Answer ✅ A species that
changes the structure of an ecosystem in a manner that is
disproportional to its abundance. Ex: Beaver, Elephant
Foundation Species - Correct Answer ✅ A numerically
dominant species that structures an ecosystem through its
abundance. Ex: Kelp, Sequoias, Marshes
, Bis 2B Final Study Exam Questions and
Answers (Latest Update 2024)
Guild - Correct Answer ✅ A group of taxonomically similar
species feeding at the same trophic level. Ex: foliage gleaning
insectivorous birds
Top-down Effects - Correct Answer ✅ The apex predator
controls the population of those it preys upon and further. Ex:
Trophic Cascade
Bottom-up Effects - Correct Answer ✅ Nutrients are added
to an ecosystem, causing them to 'cascade up' to higher
trophic levels. Ex: Effect of excess phosphorous in lakes
Mutualism - Correct Answer ✅ Both species benefit from
interaction
Obligate Mutualism - Correct Answer ✅ A species requires
the mutualism to survive (rare) Ex: Yucca and Yucca Moth
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