(02.04 MC)The diagram below shows a beaker with two compartments separated by a semipermeable membrane.The membrane does not allow salt particles to pass through. What will most likely be observed in the beaker?

(02.02 MC)Which of the following best explains how a scanning electron microscope is used to produce an image of a specimen?

(01.03 MC)Which of the following would most likely be key to gathering evidence that the “RNA World” hypothesis is valid?

(02.04 MC)Which of the following accurately describes an example of how materials can move across the cell membrane through active transport?

(01.01 HC)After researching the possible effects of music, Elaina proposes that if people listen to faster-paced music, their pulse rates will increase more than if they listen to slower music. Her mother listens to classic rock at a high volume for 30 minutes, her younger brother quietly listens to classical music while he sleeps at night, and her grandmother listens to two hours of rap at a medium volume. Elaina records each person’s pulse before and after listening to the music.What can you infer is missing from Elaina’s scientific investigation?

(02.02 MC)Which of the following best explains how a dissecting microscope differs from a compound light microscope?

(01.02A MC)Which of the following characteristics of carbon is responsible for the variety of carbon-based molecules on Earth?

(01.02A MC)What can you conclude about the advantage of the cell membrane being made up of phospholipids?

(01.01 MC)What must happen for scientific theories to be accepted as valid?

(02.02 MC)Which of the following best explains how a dissecting microscope differs from a compound light microscope?