Carbon cycle is process that shows the exchnge of carbon in the living and atmospheric system. Carbon cycle starts with the giving off of carbon dioxide from nimals, accumulation of co2 of plants, contribution of organic matter of dead animals and plants, photosynthesis, etc. The answer is D. fermentation
The lymphatic system includes areas of high concentrations of APCs, T and B cells.
<h3>What is the lymphatic system?</h3>
The lymphatic system is a branch of the circulatory system which consists of a system of organs , tissues, cells and vessels known as lymphatic vessels, which help transport the fluid, lymph around the body.
The lymphatic system contains high concentration of immune cells.
Therefore, the lymphatic system includes areas of high concentrations of APCs, T and B cells.
Learn more about lymphatic system at: brainly.com/question/3318384
#SPJ1
The signs and symptoms of a cluster headache include severe<span> right-sided headache with a runny nose, droopy eyelids, and tearing of the eye on the right side.
</span>The injectable form of sumatriptan<span> (</span>Imitrex<span>), which is commonly used to treat a migraine, is also an effective treatment for acute cluster headache</span>
