Grade 9 Ecology

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

A series of chemical reactions, that occur in organisms near volcanic vents in the ocean floor, that produce energy using chemical compounds instead of sunlight.

• chemosynthesis

• respiration

• photosynthesis

• cyanobacteria

How much energy is converted in a food chain after the organism it uses some of that energy for respiration.

• gross primary productivity

• productivity

• net primary productivity

• biomass

The Earth's atmosphere is 78%

• nitrogen

• oxygen

• carbon dioxide

• argon

During photosynthesis, plants use the Sun's energy to pull what element away from carbon dioxide and water?

• hydrogen

• carbon

• oxygen

Chloroplasts

• evolved from cyanobacteria

• reflect green light

• are the site of photosynthesis

• all of these are correct

Energy-rich food compound that stores chemical energy.

• glucose

• cellular respiration

• giraffe

• mitochondria