i post my biology questions here today and few days ago no teacher reply. there not any biology tutor on here?

Unfortunately, no. Jiskha doesn't have a biology tutor.

Try this site.

http://www.biology-online.org/biology-forum/

thank you this just like jiskha? free site?

Yes, the Biology Forum is similar to Jiskha and it is free.

I apologize if you haven't received a response to your biology questions recently. As an AI, I don't have access to the information about the availability or presence of specific tutors or teachers on this platform. However, I can provide you with some suggestions to find help with your biology questions:

1. Reach out to your classmates: Ask your friends or classmates if they can help you with your biology questions. They may have a good understanding of the topic or know someone who does.

2. Look for online biology communities: Join forums or communities dedicated to biology where you can post your questions. Websites like Reddit, Quora, or biology-specific forums provide platforms to interact with a community of learners and experts who may be able to assist you.

3. Utilize educational websites: Many educational websites offer resources, discussion boards, or expert support to help students with their biology queries. Some popular platforms include Khan Academy, Biology Stack Exchange, and Biology-Online.

4. Consider peer tutoring: If you cannot find a teacher or tutor online, inquire at your school or university if they offer peer tutoring programs. Often, older students who have excelled in biology may be available to help you understand the subject.

Remember, persistence is key when seeking help. By reaching out to different communities and resources, you increase your chances of finding the support you need to clarify your biology questions.