Answer:
H+
Explanation:
Hemoglobin is the major protein of red blood cells. It has many exposed amino groups and carboxylic groups at its surface. These NH3 and COOH groups serve as weak acids and bases respectively and allow hemoglobin to serve as a buffer to maintain the pH of the RBC cytoplasm.
As the exposed amino groups of hemoglobin protein bind to the H+ ions, the free H+ concentration of the cytoplasm of RBC is reduced leading to a buffer action to maintain the pH.
Some man-made fibres, too, are derived from naturally occurring polymers. For instance, rayon and acetate, two of the first man-made fibres ever to be produced, are made of the same cellulose polymers that make up cotton, hemp, flax, and the structural fibres of wood.
Answer:
The Liver
Explanation:
The largest organ in the abdominal cavity is by far the liver, just below the diaphragm (the flap of muscle separating the abdominal from the thoracic cavity). Notice the umbilical vein connecting the umbilical cord with the liver
Answer:
They were competing for the same type of food.
Explanation:
The introduction of brown and black European rats may have led to the extinction of Darwin’s rice rat due to competition for food and resources. These are the main factors that affects am organisms survival.
The brown and black rat were better adapted for survival and competition of the food and resources available which lead to the death and extinction of Darwin’s rice rat.
