A car is speeding at 27 m/s on a street when he comes to a screeching halt at a stoplight. This stop took place over 3 seconds. Did the car experience acceleration or deceleration? What was the rate of change in the car’s velocity?

The basic repeating unit of nucleic acids are known as nucleotides. a nucleotide consists of three distinct chemical groups.

Need the answers if its a multiple choice question

An ecosystem is in a certain area and includes living and non living plus there is weather conditions and a biome is a large amount of area with similar climate.so ecosystem is based on weather and biome is based on the average climate