Grade 9 Ecology Review Questions

The parts of Earth where life exists

• lithosphere

• biosphere

• hydrosphere

• atmosphere

A land-based ecosystem

• abiotic

• aquatic ecosystem

• ecosystem

• terrestrial ecosystem

A system that is made up of all the interacting biotic and abiotic parts of a certain place.

• aquatic ecosystem

• ecologist

• ecosystem

• abiotic

This offers protection from UV radiation, helps hold in heat, and contains the oxygen and carbon dioxide required for animal and plant life.

• biosphere

• lithosphere

• hydrosphere

• atmosphere

Energy-rich food compound that stores chemical energy.

• glucose

• cellular respiration

• giraffe

• mitochondria

Any living thing that gets the energy it needs by making its own food.

• photosynthesis

• cellular respiration

• producer

• consumer

A model that describes how the energy that is stored in food is transferred from one living thing to another.

• glucose

• producer

• food chain

• cellular respiration

A series of chemical changes that let living things release the energy stored in sugars to fuel all life functions.

• consumer

• cellular respiration

• photosynthesis

• glucose

A series of chemical changes that let green plants capture the Sun's light energy and transform it into chemical energy.

• cellular respiration

• glucose

• photosynthesis

• food web

Any substance that a living thing needs to sustain life.

• algal bloom

• nutrient

• decomposer

• fertilizer