Course Overview

Biology B is the second part of a comprehensive high school biology sequence, building upon the foundational concepts introduced in Biology A. This course focuses on genetics, evolution, and ecology, guiding students through an exploration of the molecular basis of heredity, Mendelian genetics, DNA structure and function, and the mechanisms of natural selection and speciation. In addition, students analyze ecological systems, studying the complex interrelationships among organisms and their environments. Emphasis is placed on connecting biological principles to real-world issues in health, the environment, and society.

Key Learning Focus

• Genetics and Heredity: Understanding DNA, gene expression, inheritance patterns, and genetic variation.
• Evolutionary Biology: Examining the processes of natural selection, adaptation, and speciation through evidence-based analysis.
• Ecology: Analyzing ecosystems, energy flow, population dynamics, and the interactions that shape biodiversity.
• Scientific Research Skills: Applying inquiry-based methods to collect, interpret, and evaluate biological data.
• Real-World Applications: Connecting biological principles to current issues in medicine, conservation, and environmental science.

Instructional Approach

Biology B emphasizes active, project-based learning to reinforce biological concepts. Students conduct genetic crosses, model evolutionary patterns, investigate ecological interactions, and analyze case studies that link theory to practice. Laboratory activities and virtual simulations complement hands-on experiments, encouraging scientific inquiry, critical thinking, and problem-solving. Students are also encouraged to explore potential career pathways in biology, health sciences, and environmental fields.

Academic Alignment and Progression

This course aligns with state and national science education standards and is designed for grades 9–12. As the second part of the Biology sequence, it builds directly on Biology A and prepares students for advanced science courses, including AP Biology and college-level coursework in life sciences. Together, Biology A and B provide a strong foundation for academic and career pathways in biology, healthcare, biotechnology, and environmental studies.

Outcomes

By the end of Biology B, students will:

• Demonstrate understanding of the molecular basis of heredity and genetic inheritance.
• Explain mechanisms of evolution, including natural selection and speciation.
• Analyze ecological systems and evaluate relationships among organisms and their environments.
• Apply scientific inquiry to conduct experiments and interpret biological data.
• Be prepared for advanced high school and college-level biology courses, as well as careers in life sciences and related fields.