#1
Which organism is considered a primary producer in an ecosystem?
#2
Which of the following is NOT a greenhouse gas?
#3
Which of the following is an example of a biotic factor in an ecosystem?
#4
What is the primary source of energy for most ecosystems on Earth?
#5
What is the term for the process by which carbon is transferred from the atmosphere to organisms and back to the atmosphere?
#6
Which of the following is NOT a type of ecological succession?
#7
What is the term for a relationship in which one organism benefits while the other is unaffected?
#8
Which of the following is an example of a keystone species?
#9
What is the term for the process by which water moves from the atmosphere to the Earth's surface, then back to the atmosphere through evaporation and transpiration?
#10
Which of the following is NOT a type of ecological pyramid?
#11
Which factor is considered a density-dependent limiting factor in an ecosystem?
#12
What is the term for the process by which nitrogen is converted into ammonia by bacteria?
#13
Which of the following is an example of intraspecific competition?
#14
What is the term for the process by which an organism's niche is partitioned to avoid competition?
#15
Which of the following is an example of a density-independent limiting factor?
#16