Grade 9 · Biology
This quiz helps revise “Ecology” in Biology for grade 9. It has 25 questions in five categories: Ecological Levels, Population Dynamics, Species Interactions, Energy and Matter, Ecosystem Change. Questions get harder as the points go up, from 100 to 500.
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
What is a single living entity called at the smallest ecological level of study?
What is a group of individuals of one species living in the same area at the same time?
What is the set…
In the gameWhat level includes a…
In the gameWhat is the highest…
In the gameWhat is the maximum population size that an environment can sustain over time?
What type of population growth produces a J-shaped curve when resources are unlimited?
What type of growth…
In the gameWhat is a limiting…
In the gameIn the logistic model…
In the game
What interaction benefits both species?
What interaction benefits one species while the other is neither helped nor harmed?
What interaction benefits one…
In the gameWhat interaction occurs when…
In the gameWhat principle says two…
In the gameWhat organisms form the first trophic level by making organic matter from inorganic sources?
What organisms feed directly on producers?
What organisms break down…
In the gameWhat rule says that…
In the gameWhat process converts atmospheric…
In the game
What type of succession begins on newly exposed bare rock where soil is initially absent?
What type of succession follows a disturbance when soil remains in place?
What process enriches water…
In the gameWhat process increases the…
In the gameWhat process divides continuous…
In the gameAll 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.