NLN PAX Science Practice Tests | 160 Questions with 100% Correct Answers | Verified | Latest Update 2024

A person blows his breath into a straw that is placed in limewater. The limewater becomes cloudy because the person's breath contains: - carbon dioxide A person who was in an auto accident has formed a blood clot at the site of the injury. One event that can lead to formation of a blood clot is that: - ruptured platelets release thromboplastin A student focuses sunlight to a point with a thin converging (convex) lens. Which of these direct measurements can the student make as a result of this experiment? - the approximate focal length of the lens In ecological succession, the first living thing to colonize a hitherto barren area is called a: - pioneer organism Unicellular organisms that have a nucleus and can swim with the aid of cilia are examples of: - protozoans Which of these conditions is associated with smoking? - emphysema Which of these quantities is most closely associated with an object's inertia? - Mass