Answer:
The correct option is: B) peristalsis
Explanation:
Peristalsis is the involuntary wave-like contractions and relaxations of the smooth muscles of the gastrointestinal tract of the humans.
These alternating contractions and relaxations produces a peristaltic wave that pushes the food down the esophagus of the digestive system. The peristaltic movement prevents the food from moving backwards and pushes the food forward.
Answer:
tunica intima (inner layer)
Explanation:
Walls of veins is composed of three layers, which are:
- A. Outer layer (tunica adventitia) is of connective tissue with the collagen fibers.
- B. Middle layer (tunica media) is of smooth muscle which are arranged circularly and the elastic fibers.
- <u>C.Inner layer (tunica intima) which consists of specialized simple squamous epithelium which are also known endothelium which lines all the blood vessels and endocardium of heart.</u>
Answer: B. Sarcoplasmic reticulum
Explanation: The sarcoplasmic reticulum is the name given to the organelle in the muscle cell, in charge of the storage and regulation of the intracellular calcium levels. It is the smooth endoplasmic reticulum in muscle cells, it means that it does not have ribosomes in its surface.
Option A. Incorrect. A SARCOMERE is the functional and anatomic unit of the striated muscle (skeletal muscle and heart muscle). This word comes from the greek: <em>sarkos (meat), meros (part). </em>That is reason you could find other structures of the muscle cell with this root (SARCO...).
Option C. Incorrect. "Arcolemma" this word does not exist. But if it refers to SARCOLEMMA, this word means: <em>sarko (meat), lema (cortex) </em>in greek<em>. </em>It is the plasma membrane of the muscle cells.
Option D. Incorrect. The SARCOPLASM, comes from the greek: <em>sarko (meat), plasm (matter). </em>This structure is the citoplasm of the muscle cells.
In conclusion, the word SARCOPLASMIC RETICULUM, refers to a <em>structure of the muscle cell, </em>that in this case, is the RETICULUM or the SMOOTH ER.
The NFL is on track to entirely reverse a multiyear drop that began in 2017, according to an SBJ analysis of publicly recorded attendance, and per-game attendance is up 4% year over year throughout the league.
<h3>Which policy do you mean?</h3>
An official agreement reached by a group of individuals, a commercial organization, a government, or a political party on a set of ideas or a strategy for how to act in specific circumstances: They think that Europe needs a unified foreign and security policy.
<h3>How important is a policy?</h3>
Regarding how a company conducts business, policies offer direction, uniformity, accountability, efficiency, and clarity. This provides norms and ideals that cooperative members can adhere to.
To know more about Policies visit:
brainly.com/question/29435499
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