Pathogens are disease causing agent
Proteins
Proteins are used for cellular repairing and chemical processes. Ribosomes are one of the most important organelles in the cell, mostly part of the rough endoplasmic reticulum. It manufactures enzymes such as proteins which will be utilized by many organelles in the cell. Microtubules are one, responsible for the framework and acts as a skeleton of the cell –cytoskeleton needs proteins, also cytoplasm and other organelles of the cell. For a prokaryote or a eukaryote cell to survive, they need protein.<span> Fundamentally, the cell would cease to function and possibly die</span>
A. until both objects reach the same temperature
Synaptic signaling is the answer. It is the same to paracrine signaling but
there is a something different in structure called the synapse between the two
cell originating and the receiving the signal for example between a neuron and
the muscle that is controlled by neural activity. It only happens between cells
with synapse.
