Answer: Erythrocytes also known as Red blood cell compose about 40-45% of blood
Explanation: 40-45% of the blood volume is erythrocytes i.e the red blood cell. It contains heamoglobin a special protein that carries oxygen to the lungs.
Answer:
Yes
Explanation:
When all biotic organisms of food chain are represented on different trophic levels we would realise that the number of trophic levels in an ecosystem could be limited to four, rarely five.
Answer:
sodium ions diffuse through leakage channels into the cell, but potassium ions diffuse through leakage channels out of the cell
Explanation: