Next Generation Science Standards
NGSS.MS-LS. LIFE SCIENCE
MS-LS2. Ecosystems: Interactions, Energy, and Dynamics - Students who demonstrate understanding can:
MS-LS2-2. Construct an explanation that predicts patterns of interactions among organisms across multiple ecosystems.
MS-LS2.DCI. Disciplinary Core Ideas
LS2.A: Interdependent Relationships in Ecosystems
LS2.A:4. Similarly, 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 involved in these competitive, predatory, and mutually beneficial interactions vary across ecosystems, the patterns of interactions of organisms with their environments, both living and nonliving, are shared. (MS-LS2-2)
MS-LS4. Biological Evolution: Unity and Diversity - Students who demonstrate understanding can:
MS-LS4-4. Construct an explanation based on evidence that describes how genetic variations of traits in a population increase some individuals’ probability of surviving and reproducing in a specific environment.
MS-LS4-6. Use mathematical representations to support explanations of how natural selection may lead to increases and decreases of specific traits in populations over time.
MS-LS4.DCI. Disciplinary Core Ideas
LS4.B: Natural Selection
LS4.B:1. Natural selection leads to the predominance of certain traits in a population, and the suppression of others. (MS-LS4-4)
LS4.C:1. Adaptation by natural selection acting over generations is one important process by which species change over time in response to changes in environmental conditions. Traits that support successful survival and reproduction in the new environment become more common; those that do not become less common. Thus, the distribution of traits in a population changes. (MS-LS4-6)