Answer:
b. cobalt, iron, and nickel
Explanation:
It decreases the population of certain animals
Answer:
work together to carry out a life function
The gap junction includes "micro tunnels" that are formed between two This junction it is an<span> intercellular connection that allows communication between cells and </span><span>exchange of ions, second messengers, and small metabolites between adjacent cells</span>
The micro tunnels are regulated gates through which this molecules pass.
