<h3><u>Answer;</u></h3>
Biogeochemical cycles
<h3><u>Explanation</u>;</h3>
- <em><u>Biogeochemical cycles are cycles through which earth's elements undergo chemical reactions that build molecules, destroy molecules, and change molecules into other molecules, reusing the same atoms over and over.</u></em> These cycles includes a variety of chemical, geological and biological processes.
- The major biogeochemical cycles include; water cycle, carbon cycle, nitrogen cycle and oxygen cycle. These cycles function to conserve and recycle matter which is part of living organisms.
Organ system is the most complex in organization
Word and definition
1] Prokaryote = Prokaryotic cell refers to the cell which is unicellular. Prokaryotes are unicellular organisms that consist of a single prokaryotic cell. Prokaryotic cells are simple cells that do not have a true nucleus or other cell organelles.
2] Osteocyte= a cell that is characteristic of adult bone and is isolated in a lacuna of the bone substance
3] Macrophage = Macrophages are white blood cells that engulf and digest pathogens.
4] Microscope= An instrument that gives an enlarged image of an object
5] eukaryote = Eukaryote, any cell or organism that possesses a clearly defined nucleus. The eukaryotic cell has a nuclear membrane that surrounds the nucleus, in which the well-defined chromosomes (bodies containing the hereditary material) are located.
Carbon has an atomic number of 6, atomic number is the number of protons in the nucleus of an atom, therefore carbon has 6 protons, and since the number of electrons are equal to the number of protons in a neutral atom, then the number of electrons in carbon atom is 6