yes, Muscularis  mucosa - The stomach and small intestine's mucosa are pulled into undulating folds by a thin layer of smooth muscle that is constantly tensed. The surface area that is available for digestion and absorption is significantly increased by these folds.
The submucosa is located directly beneath the mucosa, as its name suggests. It joins the underlying muscularis to the overlaying mucosa by way of a large layer of dense connective tissue. It has blood and lymphatic vessels (which carry nutrients that have been absorbed), as well as a few submucosal glands that secrete digestive juices. Additionally, it functions as a passageway for the submucosal plexus, a densely branched network of nerves.
These layers compress to encourage mechanical digestion, expose more of the food to the chemicals that aid in digestion, and transport the food along the canal. 
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B ecosystem. They include abiotic factors and biotic factors.
        
                    
             
        
        
        
Trees would help make a forest. Tall grass would help make a meadow. Hope this helps!
        
             
        
        
        
Answer:
False 
Explanation:
In eukaryotes apart from RNA polymerase, the transcription of genes requires many different proteins called transcription factors. These transcription factors are important to initiate and regulate transcription.
There are two types of transcription factors regulatory and basal transcription factors. Basal transcription factors regulate transcription by binding to a gene promoter and regulatory transcription factor regulates transcription by binding to some regulatory sequences for example enhancers and silencers.  
Therefore only basal transcription factor binds to the promoter for regulating transcription. Therefore the statement is false.
 
        
             
        
        
        
Microplastics that make up the majority of garbage patches can't always be seen by the naked eye. Satellite imagery of oceans doesn't show a giant patch of garbage.