Answer:
Each B cell produces a single species of antibody, each with a unique antigen-binding site
Explanation:
Answer:
It is either A or D, im not sure what the bubbles represent either o2 or co2.
Explanation:
Answer: Metalloid and non-metals not only form covalent bonds by sharing, but can form ionic bonds either by losing or gaining electrons
Hope this helps
Explanation:
Choose and pick may be an example
