Are there any Biology teachers that could check my answers for me?

3 answers

I'm sorry, but Jiskha doesn't have any regular biology tutors.

Try this site.

http://www.biology-online.org/biology-forum/
In addition, be sure to make really good use of KhanAcademy!
http://www.khanacademy.org/science/biology
Choose from the general topics at the right and then find the specifics you need within each topic.
A police car approaches a large wall at 51m/s. Its siren emits a 980 Hz signal.

What is the frequency of the reflected sound observed by the officer
Similar Questions
    1. answers icon 1 answer
  1. Question 1I LOVE biology- and the teachers are amazing, so I cannot wait to take it again. How can I be sure to FAIL Biology? a
    1. answers icon 1 answer
    1. answers icon 1 answer
    1. answers icon 3 answers
more similar questions