The release of oxytocin from the posterior pituitary gland during labor is an example of positive feedback mechanism. Oxytocin stimulates the muscle contractions that push the baby through the birth canal

7 0

3 years ago

B-lymphocytes are categorized as part of the adaptive branch of the immune system for all of the following reason but one. Which

elixir [45]

Answer: B. They are a first line of defense that can begin killing pathogens immediately.

Explanation:

B-lymphocytes are not the first line of defense. On the contrary, innate immune cells such as basophils, dendritic cells, eosinophils, Langerhans cells, mast cells are the body's first line of defence.

4 0

4 years ago

If you do not know the answer than do not answer. You don’t have to answer all of the questions just answer the ones you know. W

Sholpan [36]

Answer:

a,f,d,i,c

Explanation:

5 0

3 years ago