The answer is the endocrine system.
The brainest answer would be apprenticed.
The fruiting bodies of fungi contain spores, which are dispersed for reproduction. Mushrooms are a familiar example of a Fruiting Body. They are formed from hyphae, the tiny threads that make up the bulk of most fungi. A network of hyphae, known as a mycelium, extends in all directions through the soil.
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Answer: Hydrogen bonds are created between the base pairs in DNA. Adenine pairs with thymine and cytosine pairs with guanine. Adenine and thymine create 2 hydrogen bonds while cytosine and guanine create 3. These bonds are fairly weak so that they can be broken when DNA is replicated (by an enzyme called helicase which unwinds DNA). However despite them being weak they do stabilize DNA's double helix structure as well.