(4) organisms in a changing environment must adapt to acquire necessary traits and survive
Answer:
The correct answer will be option-A
Explanation:
The centrifugation of the blood shows that 45% of the blood is composed of the cellular content and 55% blood plasma or liquid.
Erythrocytes or red blood cell constitute for about 41% of the total blood cells which transports the oxygen by binding it to the haemoglobin. The presence of haemoglobin is the reason the cell appears red which cause the color of the blood to appear red.
The remainder of the cell is white blood cells or leukocytes which play important role in providing the defence mechanism against the pathogen.
Thus, option-A is the correct answer.
Snorkel because if you don't use an snorkel you are not going to be able to breathe
A single gram of carbs provides about four calories of energy. 15 grams per 2.2 pounds.
