Answer:
The correct answer is A- B cells are activated and release antibodies
Explanation:
When an antigen invades a mammals body, specific immune cells engulf and ingest it. Some of the digested pieces are displayed on the cells bodies, the next step will be that B cells are activated and release antibodies.
Answer:
The main difference between diesel and petrol engines is that petrol engines use spark plugs to ignite the air-fuel mixture, while diesel engines rely solely on heavily compressed air.
Explanation:
Brainliest please?
Hi! Spores are produced by sporophyte, or the spore bearing generation. Spores can be found in non seed bearing plants; like liverworts, hornworts, mosses and ferns. In ferns, you could physically find spores on the underside of the frond. These sporangia may clump together as well, to form sori. I hope this helps, let me know if you have more questions!
Answer:
parasympathetic nervous system
Explanation:
After the fight or flight response generated by the sympathetic division under stress conditions, parasympathetic division triggers rest and digest activities to conserve and restore the energy levels of the body during the recovery time. It includes the stimulation of digestive glands and smooth muscles of the digestive tract to trigger the digestion and absorption of nutrients.
The parasympathetic division also slows down the physical activities of the body. It decreases heart rate, triggers constriction of airways and reduces the diameter of the pupil. Therefore, the parasympathetic division restored Malcolm to the normal state after the given stress condition.
Cause it can kill if you use un-subscribed meds
