Phytoplankton contribute positively in the oceanic ecosystem as they are a source of food for oceanic animals. Moreover, they remove carbondioxide from the carbon cycle and utilize it for the process of photosynthesis.
The correct answer is muscularis externa.
The muscularis externa refers to a section of muscle in various organs in the vertebrate body, adjacent to the submucosa. It is accountable for the gut movement known as peristalsis.
In comparison to the majority of the remainder of the digestive tract, the muscularis externa of the upper section of the esophagus comprises of striated muscle. It is accountable for peristaltic movement and segmental contractions in the GI tract.
These muscles make the movement of food and churn in combination with the digestive enzymes down the GI tract. The muscularis externa comprises of a longitudinal outer muscular layer and an inner circular layer.
A bacterium called Vibrio cholerae causes cholera infection. The deadly effects of the disease are the result of a toxin the bacteria produces in the small intestine. The toxin causes the body to secrete enormous amounts of water, leading to diarrhea and a rapid loss of fluids and salts (electrolytes).
Answer:
The correct answer is : crural region.
Explanation:
In human body, The crural region of the bone is the leg region which is extending to knee to ankles in simpler language. It includes the tarsal region, tibia, fibula, shin area of leg, pedal region.
The coxal area or region is the region of hip bone and pelvic bone. Antecubital region in elbow pit of the arm and tarsal region is part of the toe region.
Thus, the correct answer is : crural region.
Answer:
B
Explanation:
A proper balance between cell quiescence and mitosis ensures the right tissue homeostasis. Due to regular erosion of cells in the gut lining they have to be replaced frequently. In this case there are more cell in mitosis phase than quiescent phase. To replace the cells will exact copies, the DNA in the parent cells acts as a template for the duplication of copies for the daughter cells. During duplication in mitosis, there are checkpoints that ensure the process is proceeding with precision as required to produce exact copies. In case there are errors, they are repaired before one step is proceeded by the other. In the case of irreparable damage, these cells undergo induced apoptosis.
