Domain VII is the smallest of the life-science domains (6% of the TExES Science 7-12 (236) exam), covering 3 official competencies: abiotic/biotic factors and energy flow, interdependence and interactions of living things, and carrying capacity and population change.

Master the 10% rule, all five species-interaction types (predation, competition, mutualism, commensalism, parasitism), and the difference between exponential and logistic population growth — with plain-English explanations and the exact traps this exam sets around each one.

What's inside:

• All 3 official competencies (033–035)

• Plain-English breakdowns and analogies

• Common Mistake to Avoid call-outs

• Practice questions with full answer rationale