Cyanobacteria are also very often referred to as "blue-green algae" because they are photosynthetic and aquatic in nature. They are important in the ecology as they help in forming the earth's oxygen atmosphere. Many oil deposits are attributed to the activities being performed by this group of microorganisms.
It has helped us by seeing what kind of things we can see with our eyes it also helps us by seeing mirco things like dirt
process in which : A rock forms , changes from one type of rock to another , forms again by processes on and in the Earth
This statement is true. Only active transport can move molecules up a concentration gradient using energy. Passive transport on the other hand, uses no energy and occurs naturally. Therefore molecules can only move a concentration gradient.
