Last updated: November 12, 2026
These Terms of Use govern access to 1lecture.com and its educational materials, including lessons, diagrams, animations, quizzes, interactive tools, and downloads. “1Lecture,” “we,” and “our” refer to the operator of this website.
Please read these terms before using the site. If additional terms are clearly identified for a particular resource or service, review them alongside these terms.
1. Educational Purpose
1Lecture provides general information about biology and related life sciences. Content supports learning and further study within the scope explained on each page.
Materials are not individualized medical advice, diagnosis, treatment, or interpretation of personal test results. Consult a qualified healthcare professional about personal health concerns.
Examples, diagrams, and models may simplify biological systems. Review their explanations and assumptions before applying an idea elsewhere. Our Educational Disclaimer provides further information about these limitations.
2. Access and Appropriate Use
You may browse the website, follow its learning activities, and link to its public pages for lawful educational purposes. Teachers may direct learners to resources, subject to any conditions attached to the material.
You must not:
- Introduce malicious code or attempt unauthorized access.
- Interfere with the site’s availability, security, or other users.
- Circumvent access controls or impersonate another person.
- Submit material that infringes rights or unlawfully discloses private information.
- Misrepresent 1Lecture content, results, or credentials.
- Republish or redistribute protected material without an applicable permission, license, or legal basis.
Automated access must not disrupt the service. These terms do not prohibit ordinary search-engine indexing or remove rights available under applicable law.
3. Content Ownership and Permissions
Content may belong to 1Lecture, individual contributors, or third-party rights holders. Attribution, licenses, and usage notices should be checked for the particular asset.
Availability on the website does not grant a general license to reproduce, adapt, sell, or distribute all content. Downloads and resources may carry their own permissions, including conditions for classroom use.
Where an open license applies, that license governs the rights it grants. These terms do not override its permissions or impose restrictions inconsistent with it. Public-domain material and uses permitted by applicable law remain subject to their own legal position.
Retain required credits and notices, and identify modifications where required. Contact the relevant rights holder if the intended use is not clearly covered.
4. Quizzes and Interactive Tools
Learning activities depend on their stated assumptions, inputs, and scoring rules. Outputs should be interpreted within the activity’s educational scope.
Practice scores do not establish a qualification, clinical competence, or comprehensive mastery. Illustrative models should not be used as professional decision systems or as substitutes for real-world measurement.
Follow instructions and avoid submitting sensitive personal information. Report unexpected behavior with the relevant question, inputs, and displayed result. Our Interactive Tools & Quiz Validation page explains the standards used in developing these resources.
5. Feedback and Submitted Material
Submit feedback only when you have the right to share it. Avoid confidential records, unnecessary personal information, and material belonging to others unless its submission is authorized.
By sending a correction report or other feedback, you permit us to use the material as reasonably necessary to investigate, respond, and improve the relevant resource. This does not transfer ownership of your work.
Public attribution of an individual’s contribution should be agreed with that person. Publication of substantial contributed material may require separate arrangements.
6. Privacy and External Services
Personal information should be handled as described in the privacy information published for the website and any relevant feature. These terms do not themselves authorize undisclosed collection or use.
External links, embedded media, and third-party services may have their own terms and privacy practices. Their content and availability can change independently of 1Lecture.
A citation, link, advertisement, or organizational name does not by itself indicate endorsement or affiliation.
7. Accuracy, Availability, and Responsibility
We aim to maintain useful, accurate materials, but errors, omissions, interruptions, and technical problems can occur. We do not promise uninterrupted access, error-free operation, or suitability for every course or professional purpose.
Readers should use appropriate judgment and consult relevant references. Our Corrections Policy explains how reported problems should be assessed.
To the extent permitted by applicable law, we do not accept responsibility for indirect or consequential losses arising from use of the free educational website. Nothing in these terms excludes or limits liability, statutory guarantees, or consumer rights that cannot lawfully be excluded or limited. These terms do not excuse fraud or other conduct for which liability cannot lawfully be restricted.
8. Changes and Access Restrictions
We may update resources, correct errors, or change features as the project develops. Where practical, significant restrictions affecting users should be explained.
Access may be restricted when reasonably necessary to address misuse, security risks, legal requirements, or serious content problems. Any action should be proportionate to the circumstances.
Revisions to these terms will carry an updated date. Material changes should receive appropriate notice and apply prospectively, subject to applicable law and any consent requirements.
9. Questions and Applicable Rights
Questions about these terms, permissions, or site conduct may be sent through 1Lecture’s published contact channel. Please identify the relevant page or resource.
No exclusive court, arbitration process, or governing jurisdiction is designated by this document. Applicable law determines those matters, including any mandatory protections available to users.
If a provision cannot lawfully be enforced, that does not remove applicable rights or make the remaining provisions effective beyond what the law permits.