The answers to your question should be B hopefully it helped
Answer:
The immune system is made up of a network of cells, tissues, and organs that work together to protect the body.
Explanation:
The answer is A.The calcium atom must bond with an atom of high electronegativity (like fluorine) because the higher electronegativity atom will bully the low electronegativity atom and take away its electrons.
These are the choices:
A. an atom with a high electronegativity, like fluorine
B. another atom with a low electronegativity, like lithium
C. another atom that would like to share electrons
D. no other atoms because it's too weak to bond with anything
Idk if this is a question but all options would be Pp
Why is it important?
- Because when bacteria converts ammonia into nitrate and nitrite, producers need them to make proteins and then consumers eat the producers and reuse the nitrogen to make their own proteins.