Target Tissues or organs <span />
Answer:
Peristalsis is the involuntary movement of the muscles that move food through the digestive system.
Explanation:
- Peristalsis is a reflex response.
- It is initiated when the gut wall is stretched by the contents of the lumen.
- Peristalsis occurs in all parts of the gastrointestinal tract from esophagus to the rectum.
- It actually refers to the ringlike contraction of the circular smooth muscle that move progressively forward pushing the bolus.
- It involves coordinated contraction and relaxation above and below the food bolus so that the bolus is pushed forward instead of being pushed back.
The answer is a production of spores which are used for
reproduction.
<span>In fungi, the fruiting body contains spores, which are the
fungi's reproduction units. Spores are released by wind, rain, or animals. Once
they land on an adequate surface they grow into hyphae, and eventually form a
mycelium. The mycelium can later develop into the fruiting body and, thus, the
cycle is repeated.</span>
Answer: composed of building blocks called nucleotides.
<span>Nucleic acids are small but not simple
molecules. They are the most important biomolecules because of their several
functions. They are composed of building blocks called nucleotides but not a source
of cellular energy. </span>