by Callie Oliver | Jan 4, 2019
(MS.LS2B.b) Transfers of matter into and out of the physical environment occur at every level.
by Callie Oliver | Jan 4, 2019
(MS.LS2B.a) Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem.
by Callie Oliver | Jan 4, 2019
(MS.LS2A.d) Predatory interactions may reduce the number of organisms or eliminate whole populations of organisms. Mutually beneficial interactions, in contrast, may become so interdependent that each organism requires the other for survival. Although the species...
by Callie Oliver | Jan 4, 2019
(MS.LS2A.c) Growth of organisms and population increases are limited by access to resources.
by Callie Oliver | Jan 4, 2019
(MS.LS2A.b) In any ecosystem, organisms and populations with similar requirements for food, water, oxygen, or other resources may compete with each other for limited resources, access to which consequently constrains their growth and reproduction.
