Explanation:
Hemoglobin is a blood hemoprotein, with a molecular mass of 64,000 g / mol (64 kDa), of a characteristic red color, which transports the dioxygen (commonly called oxygen), O2, from the respiratory organs to the tissues, the dioxide of carbon, CO2, from the tissues to the lungs that eliminate it and also participates in the regulation of blood pH, in vertebrates and some invertebrates.
Hemoglobin is a quaternary structure protein, which consists of four subunits. This protein is part of the hemoprotein family, since it has 1 heme group in each subunit
Hemoglobin is a tetrameric protein, which consists of four polypeptide chains with different primary structures. ... Each hemoglobin polypeptide chain is attached to a heme group to form a subunit. The four subunits of hemoglobin in its quaternary structure form a tetrahedron.
Explanation:
Pangea
Pangea is the belief that all continents were all connected at one time
Answer:
Pros: solar energy is renewable, abundant, and eco friendly
cons: expensive and requires space
Explanation:
Positron Emission Tomography scan of the brain of cocaine addicts showed that the drug affects how the brain use glucose. Cocaine users' brain cannot use glucose efficiently and there are also reduced metabolic activity in other areas of the brain.
Adhesion can be defined as the process of attachment of a substance on the surface another. This attachment can be because of the physical or chemical linkage. The physical adhesion can be reversed using enough force.
Among the given options, the water droplets sticking to a window represents the process of adhesion. The water droplets are attached to the surface of the glass. The water forming a large drop is example of cohesion. The water evaporating from leaf is an example of evaporation, and the water falling from the sky is an example of condensation.
Hence, the correct answer is option (A) - water droplets sticking to a window.
