C. Fill in the blanks with the correct answer.
1.__is the study of how living organisms (biotic ) non-living parts ( abiotic) of the environment interact with and depend on each other.
2. The basic chemical unit that makes up the parts of a cell is called__
3. The smallest unit of an element is an/a___
4.__ contains the hereditary materials of the organism, which are transmitted from one generation to another.
5. The collection of ecosystem with similar climate and covering a large geographical area.
6.__ is a group of similar organisms that can mate and produce fertile offspring
7. The area of the earth where life is possible.
8. It is the only planet in the solar system that is capable of supporting life.
9. The gas or air that envelops the earth.
10. The liquid or the water part of the earth.
11. The solid part of the earth.
12.-14 The three major types of subatomic particles are ___,___,___.
15. A complex organism may consist of__ of cells.​