How do nitrogen-fixing bacteria help cycle nitrogen through ecosystems?

A. They release nitrogen into the atmosphere when they replicate their DNA.

B. They capture nitrogen from the atmosphere and convert it into forms that plants can use, like ammonia.

C. They convert sunlight into chemical energy which is then stored in the nitrogen.

D. They convert ammonia from animal feces and urine into forms that plants can use.

B that’s the nitrogen fixing bacteria’s job think of it as they “fix” the nitrogen so plants can use it

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.

Yes yes yes very good