<span>the type of white blood cells is produced in the thymus and destroys the cell membranes of bacteria is: B cells or also known as B. lymphocytes
B cell is a type of white blood cell of the lymphocyte subtype. One of its main function is to create a component in adaptive immune systems that made the body capable to became more resistance towards a phatogen after previously exposed to it</span>
1: inferior vena cava
2: aorta
3: superior vena cava
4: pulmonary vein
Its the first one ! happy holidays !!
Answer:
Overload: A principle of exercise that states that the only way to improve fitness is to increase over time. This can mean increasing the amount of resistance, increasing the amount of time, or increasing the speed. When just beginning an exercise, it is generally difficult