When old red blood cells rupture, the released hemoglobin is ingested by macrophages
Answer:
a scientific theory of the origin of species of plants and animals
The source of most consumers and consumers is sunlight.
The excretory system<span> is a </span>system<span> of organs that </span>work together<span> to rid the body of any waste. The </span>excretory systems<span> includes the lungs, ureter, urethra, liver, urinary bladder, kidneys and skin. ... The </span>system<span> controls the pH and osmotic concentration of the fluid, and it excretes urea, uric acid and ammonia.</span>
Answer: Smooth Muscle
Explanation: Smooth muscle cannot be controlled consciously and thus acts involuntarily.
