Gravity. It helps keep all the planets in play.
it allows scientists to quickly make many copies of DNA.
When a person breathes the oxygen enters the bronchioles in the lungs. From there, the oxygen enters the alveloi. The gas exchange occurs in the capillaries surrounding the alveloi. The oxygen enters the blood in these capillaries. These capillaries then join together to form arteries, which transport the oxygen. The pulmonary veins then transport this oxygen rich blood to the heart. The left atrium pumps this blood to the left ventricle, from where it enters the aorta, which transfers the blood to the kidneys through a network of blood vessels.
Hence, the correct sequence of the events will be : B A E C D F
Answer: Option (4) is the correct answer.
An atom consists of three types of sub-atomic particles which are electrons, protons, and neutrons.
Protons have a positive charge and neutrons have no charge. Whereas electrons have a negative charge.
Protons and neutrons are placed inside the nucleus of an atom. On the other hand, electrons revolve around the nucleus of the atom.
Thus, we can conclude that the structure of an atom is best described as electrons in orbit about a nucleus of protons and neutrons.
Metabolism is the total of all the chemical reactions in an organism.
What is metabolism?
Metabolism is defined as a process by which the body converts what we eat and drink into energy and it is the total of all the chemical reaction.
There are two types of metabolism that is catabolism and anabolism and metabolism is anabolism + catabolism.
The main purpose metabolism of is to convert energy in food to provide energy for cellular processes, the conversion of food in protein, lipids, carbohydrates, and nucleic acid.
When metabolism is at high level more calories are burn at rest and during activity.There are two types of metabolism that is catabolism and anabolism and metabolism is anabolism + catabolism. High metabolism required to take more calories to maintain the weight.
Therefore, Metabolism is the total of all the chemical reactions in an organism.
Learn more about metabolism here: