Which of the following statements is the stronger beginning in a personal narrative? Choose the correct answer. With shaking hands, I slowly turned the key in the lock, not daring to breathe. I turned the key in the lock, wondering what was behind the door. I was scared to open the door and not sure what I would find behind it.

maritime tropical may be your answer.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.