Sharks shake their head when they bite because they cannot chew.

What does the gray whale eat?

Describe countershading AND how it works as camouflage AND give an example of organism that displays countershading.

Which of the following is a pelagic spawner?

Demersal fishes _____.

The skeleton of the jawless fish is bone.

Which of the following is critically endangered?

Rays and skates move water across their gills through their _____.

Select all of the jawless fishes listed below.

You are required to complete this question. Failing to answer this question will be subject to a 30% deduction of the total points you earn for this exam.  The exam is closed book and closed notes. But, you are allowed to use ONE letter-size cheat sheet during the exam.    Follow the instructions below carefully:  Step 1: Show the FRONT and BACK pages of your cheat sheet to the camera Hold each page in front of the camera steady for “5 seconds”. You MUST clearly show the whole range of each page to the camera! Step 2: Once you are done, answer the following question to confirm you have completed the requirement.  Question: I attest that I have shown BOTH FRONT AND BACK PAGES of my cheat sheet to the camera for recording purposes.    Note: If you choose NOT to use the allowed one letter-size cheat sheet for the exam, you show BOTH HANDS to the camera. This will be recorded to indicate you don’t use a cheat sheet for the exam.  Then you choose “True” to answer the question.