3.5 The student will investigate and understand relationships among organisms in aquatic and terrestrial food chains. Key concepts include

a) producer, consumer, decomposer;

b) herbivore, carnivore, omnivore; and

c) predator and prey.

3.6 The student will investigate and understand that ecosystems support a diversity of plants and animals that share limited resources. Key concepts include

a) aquatic ecosystems;

b) terrestrial ecosystems;

c) populations and communities; and

d) the human role in conserving limited resources.

Science Standards of Learning for Virginia Public Schools – January 2010