The correct answer is convection because the campfire warms the air around the person.
Convection refers to the transfer of mass motion of a fluid like water or air when the heated fluid is made to be carried away from the heat source, that is, carrying energy with it. Convection takes place when particles with an ample of heat energy in a gas or liquid move and occupy the place of constituents with less heat energy.
Heat energy is conducted from hot places to cooler places by the process of convection.
Both viral vectors and bacterial plasmids can be used to transfer genes into an organism. An invitro fertilisation could maybe be helpful, but not with engineered genes, but existing genes.
A) viral vectors is the best answer is viruses can be used to infect plants and change their DNA- bacteria aren't as good, as they can mostly be used to modify other bacteria only
