How to Become a Biologist

Biology is a versatile career field. Biologists contribute to research, environmental conservation, healthcare advancements, and biotechnology innovation. 

This guide explains:

  • What a biologist does
  • Degree requirements
  • Certification pathways
  • How long it takes to become a biologist
  • Salary and job outlook
  • How University of Arizona Online can support your path

 

 

Biologist taking a sample in the field

What Is a Biologist?

Biologists study living organisms, including their structure, function, growth, evolution, and interactions with the environment. They may specialize in molecular biology, ecology, microbiology, zoology, or genetics.

Biologists work in laboratories, field settings, government agencies, private industry, and academic institutions.

Common responsibilities include:

  • Designing and conducting experiments
  • Collecting and analyzing biological data
  • Studying organisms and ecosystems
  • Writing research reports and publishing findings
  • Using laboratory equipment and scientific tools
  • Collaborating with research teams and stakeholders

 

 

 

What Degree Do You Need to Become a Biologist?

Becoming a biologist typically requires a strong foundation in biological sciences and related disciplines.

Typical degree requirements include:

Some entry-level roles may be available with a bachelor’s degree, while research-intensive or specialized positions typically require graduate education.
 

 

Biologist woking in a lab with a micorscope

How Long Does It Take to Become a Biologist?

The timeline to become a biologist varies depending on the level of education you attain, and your chosen specialization.

Below is a general timeline:

StepEstimated Time
Earn a bachelor’s degree4 years
Gain entry-level experience or a research assistant role1–2 years
Complete a master’s degree (optional)1–2 years
Complete a PhD (for advanced roles)3–6 years

In total, many individuals become biologists in approximately 4–10+ years

 

 

Certification Pathways for Biologists

Certification is not always required for biologists, but it can enhance credibility and career advancement, especially in specialized fields.

Certification pathway includes:

  • Professional certifications through biological or environmental organizations
  • Specialized certifications in areas such as wildlife biology, clinical research, or laboratory science
  • Continuing education and professional development courses

Requirements vary depending on the specialization and employer.


 

Biologist Salary and Job Outlook

Biologists work across a wide range of industries, and salary can vary based on specialization, education level, and experience.

Key career outlook highlights include:

  • Median salary typically ranges from $70,000–$100,000+ annually, depending on role and field
  • Opportunities in healthcare, environmental science, biotechnology, and academia
  • Demand driven by advancements in science, sustainability efforts, and public health research
  • Growth in areas such as genetics, biotechnology, and environmental conservation

 

Microscopic plant cells

 

 

How the University Of Arizona Online Can Help You Become a Biologist

Arizona Online offers programs that provide a strong foundation in biological sciences and prepare students for careers in research, healthcare, and environmental fields.

Relevant pathways may include:

Students can build competencies in:
  • Cellular and molecular biology
  • Ecology and environmental systems
  • Research methods and data analysis
  • Scientific communication
  • Laboratory techniques

These programs help prepare students for entry-level roles or advanced study in biology-related fields.


 

Biologist working with blood samples

Example Educational Pathway

Students pursuing a career as biologists may follow a flexible path depending on their interests and specialization.

A potential pathway may include:

  1. Earn a bachelor’s degree in biology or a related field
  2. Gain research or laboratory experience
  3. Pursue a master’s degree for specialization (optional)
  4. Complete a PhD for research or academic roles (optional)
  5. Enter a career in research, industry, academia

 

 

Biologist Career FAQs

Most biologists need at least a bachelor’s degree in biology or a related field. Advanced roles often require a master’s degree or a PhD.

It typically takes 4–10+ years, depending on the level of education and career goals.

Certification is not usually required but may be beneficial in specialized fields or for career advancement.

Biologists study living organisms and ecosystems, conduct research, analyze data, and contribute to scientific advancements.

Yes. Many entry-level and applied roles are available with a bachelor’s or master’s degree, though research and academic roles often require a PhD.

Biologists work in laboratories, field environments, government agencies, private companies, and academic institutions.

Biologists can specialize in areas such as microbiology, genetics, ecology, marine biology, biotechnology, and wildlife biology.