Valence is the number of electrons an atom must gain or lose in order to consummate its outer energy level or have a stable octet in its outer shell
Answer:
Nicholas Steno
Explanation:
Nicholas Steno who was a Catholic priest establish relationship between sedimentary rock layers otherwise called stratigraphy.
Stratigraphy is a branch of geology that deals with the study of rock layers. He established theoretical law of stratigraphy by introducing law of superimposition, principle of original horizontality and the principle of lateral continuity in 1669 work of fossilization of organic matter sediments.
Answer:
you....your not asking anything?
Answer:
Prokaryotic cell has undeveloped nucleus but eukaryotic cell has well developed nucleus.
Answer:
It depends...
Explanation:
Group 1 is trying to obtain energy, so as we know that lipids and carbohydrates are the basic source of energy because of their storage properties and generation of ATP during glycolysis and lipid metabolism in our body.
Group 2 is trying to obtain nutrients so to rebuild their molecules and body cells they must take enough quantities of vitamins/minerals for that. Proteins are also crucial to for rebuilding lipo-proteins in cell wall of cell amke them crucial for them. They also play an important role in muscle cell repair and replacement due to their primary composition of actin and myosin filaments.
