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.
Answer:
histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine
Explanation:
Answer:
number 1 i believe is the righ answer
Answer:
b, c, d
Explanation:
it makes it smell better, adds flavor to it and keeps it fresh for a longer time.
