Due to genetic vs. environmental conflicts, will not be able to attract females to mate 10. Which of the following is NOT affected by a biological clock. Give 2 costs and 2 benefits. The bird is released on a sunny day at 6am. You may assume you are in the northern hemisphere and the sun is due east at 6am and due west at 6pm.
Many animals use the sun or the moon for geographical orientation.
To determine if testosterone is necessary for male mounting behavior, a researcher castrates an adult male rat and discovers it does not exhibit the mounting behavior in the presence of a receptive female. What other piece of information is required to determine if testosterone is necessary for male mounting behavior. Which one of the following choices is NOT a reason for young birds to learn songs. Which of the following is the most essential explanation for these behaviors. A young white crowned sparrow will choose the song of an adult of the same species over the song of a different species.