BIO 101 EXAM 6 STUDY GUIDE 2026 FULL CONTENT QUESTIONS AND ANSWERS COMPLETE SET

BIO 101 EXAM 6 STUDY GUIDE 2026 FULL
CONTENT QUESTIONS AND ANSWERS
COMPLETE SET

◉ What is carrying capacity?
Answer: Maximum number of individuals sustained in a particular
habitat.


◉ What are the 5 types of species interactions?
Answer: Neutral (0,0), Mutualism (+,+), Commensalism (+,0),
Parasitism (+,-), Predation (+,-).


◉ What are the 3 basic levels of organization of energy transfer in an
ecosystem?
Answer: Producers, Consumers, Decomposers/Detritivores.


◉ What is the primary energy source in an ecosystem?
Answer: The Sun.


◉ In what direction does energy flow in an ecosystem?
Answer: One way.

, ◉ In what direction do nutrients flow in an ecosystem?
Answer: Recycled.


◉ What is the ending energy output in an ecosystem?
Answer: Heat.


◉ What are the 4 types of organisms in an ecosystem?
Answer: Producers, Consumers, Decomposers, Detritivores.


◉ What describes or defines each (ecosystem organisms)?
Answer: Producers: Autotrophs/self feeders/plants. Consumers:
Heterotrophs/herbivores/carnivores. Decomposers: Bacteria and
fungi. Detritivores: Eat decaying matter.


◉ What law of thermodynamics informs how energy is transferred
in an ecosystem?
Answer: 2nd law of thermodynamics.


◉ Is energy lost or gained as it moves through an ecosystem?
Answer: Lost.


◉ How does population size change as energy flows through an
ecosystem?