4.3 The student will investigate and understand that organisms, including humans, interact with one another and with the nonliving components in the ecosystem.
Key ideas include…
a) interrelationships exist in populations, communities, and ecosystems;
b) food webs show the transfer of energy within an ecosystem;
c) changes in an organism’s niche and habitat may occur at various stages in its life cycle; and
d) classification can be used to identify organisms