Movement of substances can be classified as active transport of passive transport.
In passive transport movement of substances across the membrane occurs without the expense of ATP. It occurs usually along the concentration gradient i.e., from high concentration to low concentration.
In active transport, movement of substances require energy in the form of ATP because it happens against the concentration gradient i.e. from low concentration to high concentration.
One of the most common methods to date volcanic rocks uses potassium (radioactive parent) and argon (stable daughter). Potassium is an element found in many minerals and rocks, and it normally has an atomic mass of 39.
<span>It
is truth that most of the unicellular organisms like bacteria, are
among the simplest life forms we know about it, but there are many
other unicellular organisms, like amoebas, warnowiids and algae, that
are far more complex. They can even have thousand of nuclei and be
visible with the naked eye. Some amoeba actively hunt their pray, and
some warnowiids even evolved and structure that functions like an eye;
so even though unicellular, they are not simple organisms at all.</span>
The upper arm bone is the claveical
B. Break down dead organisms
Fungi are decomposers. they breakdown the bodies of dead organisms. They play a very important role.
