When a plant is attacked by a pathogen, it may respond by carrying out a defense that causes cell and tissue death near the infection site, restricting the spread of the pathogen. What is the name of this defense

Hypersensitive response

Explanation:

The hypersensitive response is a defense mechanism developed by certain plants in response to the invasion of pathogens.

This mechanism features include the rapid death of cells and tissues surrounding the infection site so as to limit the invasion of the pathogens as pathogens require living cells in order to continue spreading.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.