Answer:
The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
Explanation:
Answer:
Competitive inhibition
Explanation:
Competitive inhibition is a type of enzyme inhibition where one molecule inhibits the effect of another molecule (called the substrate) by competing with it for binding at the active site of the target enzyme, thereby preventing the substrate from binding. The active site refers to the specific region of an enzyme that binds with a particular substrate. This mechanism is well-known in pharmaceutics, where specific drugs are designed to show structural resemblance to a particular substrate, preventing its normal function.
Did early life arise spontaneously or did it come from space?
Also referred to as behavioral and cognitive neuroscience, the field has been used to study child development in highly stressful environment compared to to others especially with regards to school learning. Other examples include its use in the diagnosis of irrelegular sleep disorder and insomnia
Answer:
False
Explanation
The lungs are two in number and is the main organ for respiration in the body.
The thorax is also known as the chest. It has various parts attached to it such as the heart, lungs, thymus etc.
The mesothelial cells of the pleural membrane create pleural fluid which serves two purposes:
Lubrication
Attachment of the lungs to the thorax aren’t hereby done by the smooth muscles of the lungs.
