I believe the answer is the responding stage; which is the fourth stage of listening whee one sues feedback to demonstrate to the speaker their thoughts. Feedback is used in this stage and may be verbal or non verbal. The positive feedback; while the speaker is talking, might include, alert posture, direct eye contact, appropriate facial expressions, head nods and supportive phrases such as "go on" and 'uh-huh". After speaker talks might include requests for clarification or emphatic statements.
The inside surface area is shaped in a crescent. It consists of a spiral valve which is made up of the small intestine. Although the dogfish shark has a relatively short small intestine compared to other animals, therefore, the spiral valve allows for a more compact form of the small intestine.
Hence, this structure provides maximum surface area over a relatively short distance in order to make the absorption of nutrients efficient achieved from the food, the sharks had from eating different sea animals.
<span>When new data calls current scientific explanation into question scientists must repeat the experiments to verify results and reevaluate said scientific explanations, if necessary, based on results, then scientists can develop a new hypothesis and test that.</span>