Answer:
Explanation:
Humans have changed the natural carbon cycle by burning fossil fuels, which releases carbon dioxide into the atmosphere. The nitrogen cycle begins with nitrogen gas in the atmosphere then goes through nitrogen-fixing microorganisms to plants, animals, decomposers, and into the soil.
The stretch receptors and neurons of the autonomic nervous system are parts of the gastrointestinal reflex pathway.
<h3>What is Gastrointestinal reflex?</h3>
This is usually stimulated by senses as a result of the presence of stretch receptors and neurons of the autonomic nervous system.
They help in controlling the release of acids in the stomach and also suppresses the release of digestive proteins.
Read more about Gastrointestinal reflex here brainly.com/question/1386870
This process is called diffusion
hope that helps
<span><span>
1)Bilaterally symmetrical, and vermiform.
2)Body has more than two cell layers, tissues and organs.
3)Body cavity is a pseudocoel, body fluid under high pressure.
4)Body possesses a through gut with a subterminal anus.
5)Body covered in a complex cuticle.
6)Has a nervous system with pharyngeal nerve ring.
7)Has no circulatory system (no blood system)
8)Reproduction normally sexual and gonochoristic.
9)Feed on just about everything.
10)Live just about everywhere, many species are endoparasites.</span></span>