A student places a group of cells in an unknown solution whose solute is unable to pass through the cell membrane. After an hour, the student notices the cells have lost water. What does this tell the student about the unknown solution? The unknown solution was isotonic.

The unknown solution was hypertonic.

The unknown solution was hypotonic.

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.

A12 pound cat is prescribed amoxicillin at 5mg/kg twice a day for seven days the oral medication has a concentration of 50mg/ml how many mls will the cat need per day

Which is a physical sign of stress? a: unexplained euphoria b: feelings of invincibility c: inability to sleep d: visual hallucinations