What is the crescent shaped surface of liquid that forms in pipettes and graduated cylinders?

Anurse is administering a drug that blocks the protease enzyme so new viral particles cannot mature. which category of drugs is the nurse most likely administering

How are gene and protein sequences used to classify organisms?

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?