Matter and energy in ecosystems

Flow of MATTER & ENERGY in the ECOSYSTEM

Matter is recycled, but energy is not.

Energy flows through an ecosystem in one direction, from the sun to autotrophs (producers) and then to various heterotrophs (consumers).

WATER CYCLE

CARBON CYCLE

GREENHOUSE EFFECT AND GLOBAL WARMING

NITROGEN CYCLE

Watch the video and answer...

Is there Nitrogen in the atmosphere? How much?

Where do animals obtain nitrogen from?

Where do plants obtain Nitrogen from?

How?

What do plants use Nitrogen for?

Draw the Nitrogen cycle diagram.