Examlex
Which of the following is a quaternary ammonium salt?
Church Bell
A bell found in a church tower or steeple, used for calling the congregation to worship and marking time.
Doorbell
A device designed to produce a sound, or a bell signal when pressed, used as an alert mechanism for the presence of visitors.
Optimal Interstimulus Intervals
The ideal time gap between consecutive stimuli that maximizes learning or the effectiveness of a response.
Reflex System
A biological system that enables organisms to respond automatically to specific stimuli without conscious thought.
Q7: What is the IUPAC name of the
Q24: How many different amino acids make up
Q27: Classify the alcohol shown below. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7201/.jpg"
Q44: Genetic coding is responsible for the primary
Q48: What is the IUPAC name of the
Q50: What term is used to describe the
Q58: Hydroxyapatite is a polymer of collagen and
Q60: How many half-lives are needed for a
Q62: What is the common name of the
Q68: The genetic code is composed of triplets