#1
Which organism is considered a primary producer in an ecosystem?
#2
What is the term for the total mass of living organisms in a given area?
#3
Which of the following is an example of a keystone species in an ecosystem?
#4
What is the process by which water vapor is released from the leaves of plants into the atmosphere?
#5
What is the primary role of detritivores in an ecosystem?
#6
What is the primary source of energy for most ecosystems?
#7
In a food web, which trophic level is occupied by herbivores?
#8
Which of the following is an example of a decomposer in an ecosystem?
#9
What is the term for a relationship between two species where one benefits and the other is harmed?
#10
What is the main function of the ozone layer in the atmosphere?
#11
What is the term for the process where water is released from the leaves of plants into the atmosphere?
#12
Which ecological pyramid represents the flow of energy in an ecosystem?
#13
Which of the following is a primary greenhouse gas contributing to global warming?
#14
In a food chain, what term is used for an organism that feeds on both plants and animals?
#15