Answer:The immune system is a network of cells, tissues and organs that work together to attack pathogens that try to invade your body. Bacteria, parasites and fungi that may cause infection meet a system of immune soldiers, including T-lymphocytes, macrophages and neutrophils.
Explanation:
I believe it’s carbon dioxide, because you use your respiratory system to breathe in oxygen, and oxygen goes through your circulatory system. And you breathe out CO2.
The answer is B, because carbon monoxide is a poisonous gas, it has no smell or taste and continuous inhalation may choke you to death.
When you have a good self-esteem you have a positive attitude.High self-esteem usually feel more in control of your live.A l<span>ow </span>self-esteem can<span> have a major </span>impact<span> on your </span><span>health.</span>
The answer you are looking for would be B. This is because if you are a productive worker your boss will view you as a responsible employee. Therefore valuing your work, your boss will have more respect for you in turn resulting in a better relationship.
