<span>Blood circulating from the left side of the heart to body tissues and back to the heart is travelling in the blood vessels.
Indeed, the oxygenated blood goes from the heart to the body tissues through the blood vessel with different diameters:
Aorta: is the big artery which came out from the heart.
Artery, and arterioles: which have a shorter diameter
Capillaries: which has the shortest diameter, this is where nutrient and oxygen are distributed.
Then the blood goes back to the heart by venules, veins, and vena cava</span>.
All the bold words are blood vessels
Answer:
The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function,
reproduction, sleep, and mood, among other things.
Explanation:
White blood cells (D) aid in the immune system to fight infections.
Answer: They use carbohydrate or better known as starch, and they also use lipids to store energy
Explanation: ^^
