Answer:
homeostasis
Explanation:
This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits.
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
<span> I think the answer should be State-licensed day care center</span>
The second line of defence is a group of cells, tissues and organs that work together to protect the body. This is the immune system.
When a pathogen (disease-causing organism) invades the body, the neutrophils gather at the entry site and try to engulf it and destroy it.
A T helper cell will recognise only one pathogen. If the T helper cell recognises the invader, it will immediately clone to increase numbers.
After a few days of fighting off the pathogen, you will recover from your infection.
The gallbladder is part of the biliary system of the digestive system
