Benchmark 5A
The Living Environment: Diversity of Life
Grades 6-8, page 104

Animals and plants have a great variety of body plans and internal structures that contribute to their being able to make or find food and reproduce.
 

NSES Content Standard C 
Life Science: The characteristics of organisms 
Grades K-4, page 129 
Each plant or animal has different structures that serve different functions in growth, survival, and reproduction. For example, humans have distinct body structures for walking, holding, seeing, and talking. 

NSES Content Standard C 
Life Science: Structure and function in living systems 
Grades 5-8, page 156 
Living systems at all levels of organization demonstrate the complementary nature of structure and function. Important levels of organization for structure and function include cells, organs, tissues, organ systems, whole organisms, and ecosystems. 

NSES Content Standard C 
Life Science: Structure and function in living systems 
Grades 5-8, page 156 
The human organism has systems for digestion, respiration, reproduction, circulation, excretion, movement, control and coordination, and for protection from disease. These systems interact with one another. 

NSES Content Standard C 
Life Science: Matter, energy, and organization in living systems 
Grades 9-12, page 186 
The complexity and organization of organisms accommodates the need for obtaining, transforming, transporting, releasing, and eliminating the matter and energy used to sustain the organism.