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Maybe you've struggled with biology, or need to complete this coursework as part of your graduation requirement. This convenient online course provides you with exploratory experiences and laboratory and real-life applications in the biological sciences.

As you explore the biological sciences, you'll gain an understanding of life on Earth. In the first semester, you'll focus on life on its smallest level—the cell—and examine the chemical processes of life. Semester 1 consists of four units that include:

  • The Basics of Biology and the Chemistry of Life
  • The Living Cell
  • Cellular Reproduction
  • Classical and Modern Genetics

Since the course is presented online, you can study wherever and whenever you want as you work at your own pace. You'll also benefit from the support of a dedicated and experienced instructor who will guide your learning throughout the course. It's a great solution for anyone who needs to complete this science requirement for high school graduation.

This course is offered through Career Online High School, a division of Smart Horizons Career Online High School, and is accredited by the Southern Association of Colleges and Schools (SACS). Biology: Semester 1 is a one-semester course, and can be completed in up to four weeks. Once you complete Biology: Semester 1, you can continue your science education with the next offering in this series, Biology: Semester 2. Enroll in this convenient, affordable course, and start on your path toward completing your high school education.

Semester 1 - 0.5 Credit

  • Unit 1: Approaches to Biological Research

    • Lesson 1.1 Science and the Natural World
    • Lesson 1.2 Biology: The Study of Life
  • Unit 2: Biological Molecules

    • Lesson 2.1 Matter and Organic Compounds
    • Lesson 2.2 Biochemical Reactions
    • Lesson 2.3 Water, Acids, and Bases
  • Unit 3: Cellular Structure and Function

    • Lesson 3.1 Introduction to Cells
    • Lesson 3.2 Cell Structures
    • Lesson 3.3 Cell Transport and Homeostasis
  • Unit 4: Cellular Respiration and Photosynthesis

    • Lesson 4.1 Energy for Life
    • Lesson 4.2 Photosynthesis Sugar as Food
    • Lesson 4.3 Cellular Respiration
    • Lesson 4.4 Anaerobic Respiration
  • Unit 5: Cellular Reproduction

    • Lesson 5.1 Cell Division and the Cell Cycle
    • Lesson 5.2 Chromosomes and Mitosis
    • Lesson 5.3 Reproduction and Meiosis
  • Unit 6: Genetics

    • Lesson 6.1 Mendel's Investigations
    • Lesson 6.2 Mendelian Inheritance
    • Lesson 6.3 Human Chromosomes and Genes
    • Lesson 6.4 Human Inheritance
  • Unit 7: Nucleic Acids and Gene Expression

    • Lesson 7.1 DNA and RNA
    • Lesson 7.2 Nucleic Acids and Gene Expressions
    • Lesson 7.3 Mutation
    • Lesson 7.4 Regulation of Gene Expression

Semester 2 - 0.5 Credit

  • Unit 8: Biotechnology

    • Unit 8 lesson 1: Biotechnology
  • Unit 9: Classification

    • Unit 9 Lesson 1: Introduction to the Plant Kingdom
  • Unit 10: The Theory of Evolution

    • Unit 10 Lesson 1: Darwin and the Theory of Evolution
    • Unit 10 Lesson 2: Evidence of Evolution
    • Unit 10 Lesson 3: Microevolution and the Genetics of Populations
    • Unit 10 Lesson 4: Macroevolution and the Origin of Species
  • Unit 11: Introduction to the Human Body

    • Unit 11 Lesson 1: Organization of the Human Body
    • Unit 11 Lesson 2: The Skeletal System
    • Unit 11 Lesson 3: The Muscular System
    • Unit 11 Lesson 4: The Integumentary System
    • Unit 11 Lesson 5: The Nervous System
    • Unit 11 Lesson 6: The Endocrine System
  • Unit 12: The Circulatory, Respiratory, Digestive, and Excretory Systems

    • Unit 12 Lesson 1: The Circulatory System
    • Unit 12 Lesson 2: The Respiratory System
    • Unit 12 Lesson 3: The Digestive System
    • Unit 12 Lesson 4: The Excretory System
  • Unit 13: The Immune System and Disease

    • Unit 13 Lesson 1: Nonspecific Defenses
    • Unit 13 Lesson 2: The Immune Response
    • Unit 13 Lesson 3: Immune System Diseases
    • Unit 13 Lesson 4: Environmental Problems and Human Health
  • Unit 14: Reproduction and Human Development

    • Unit 14 Lesson 1: Male Reproductive System
    • Unit 14 Lesson 2: Female Reproductive System
    • Unit 14 Lesson 3: From Fertilization to Old Age
    • Unit 14 Lesson 4: Sexually Trasmitted Infections