Ans. C. as the man above said its C, the trachea, this is true, im also taking the test and i looked up the body system and thats where the trachea is, were x is
C.
C.
Answer is C.
<u>Answer:</u>
<em>lightening breaks</em><em> down the nitrogen molecules and provide a suitable environment to mix with oxygen (high temperature and pressure). </em>
<em>When these mix with water, the nitric acids are obtained which dissolves in soil and plants can use those </em><em>nitric acids for growth and development.</em>
<u>Explanation:</u>
The role of bacteria in nitrogen cycle is it breaks down the protein content in <em>dead plants and animals during decay process</em> and ammonia is formed.
Then the<em> nitrifying bacteria causes nitrification</em> which turns nitrogen into soluble nitrates that the plants can absorb.
The correct option is (C) Grow in conjunction with shedding of their exoskeleton.
The number of species in the superphylum Ecdysozoa is staggering. This is due to the presence of two of the most varied animal phyla, the Phylum Nematoda (which includes roundworms) and the Phylum Arthropoda (the arthropods).
<h3>
What do nematodes and arthropods have in common?</h3>
- The tough external covering of Ecdysozoans, known as the cuticle, is their most obvious identifying characteristic. These animals are shielded from predators, water loss, and other elements of their environment by the cuticle, which also acts as a robust yet flexible exoskeleton.
- Every member of this superphylum undergoes periodic molting, or cuticle shedding, as they develop. They produce a fresh cuticle after molting that will protect them until their subsequent growth phase.
- The process of molting and cuticle replacement, known as ecdysis, is how the superphylum earned its name.
Learn more about the Phylum Arthropoda with the help of the given link:
brainly.com/question/14184371
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due to the pollution and the evolution by men, the cells in our bodies must lose something in order to get something better, in this case, our ability to avoid cancers, diseases. and sicknesses is lost, but we have evolved into even more intelligent species, thus called HOMO SAPIANS