Unlike acceleration and velocity, speed does not need to specify the direction of motion. Speed is a scalar quality.
Answer: Convection
Explantion: Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection
Sex cells have half as many chromosomes as other cells. Sex cells are therefore called haploid.
A sign of genetic mutation is a missing finger or an extra limb of some sort. Also people who study the human genome can trace gene pairs that are not complete or mixed up which can cause genetic mutations.
