It starts in the mouth. You start to chew in which the glands that produce saliva make it easier to send down the esophagus
Answer:
<u>Option-(True):</u> The following statement is true in all sense, as the "Cytotoxic T cells and NK cells kill by secretion of proteins. The first called granzyme which forms complexes that penetrate the cell membrane and allows the passage of the apoptosis inducing protein perforin to enter the targeted cell."
Explanation:
- In order to make it more difficult for the pathogens and other foreign particles to stay inside the human body, the defense mechanism of the human body system has evolved itself to great extents as there are different level of immune layers and more over cells that either helps in the recognition of these anti-bodies or attacks them to be eliminated from the given system.
- As the hazardous or cancer cells which are not required to stay inside the human body is removed with the help of these lymphocytes inside the immune system of the human body.
Answer:
There are four elements of transport (i think you already knew that)
Explanation:
The four elements of transport are (i) the way, (ii) the unit of carriage, (iii) the motive power unit, and the terminal. (i) The way. Natural ways are cheap and free, and have no maintenance costs unless we try to improve them artificially. The sea, the air, the rivers, and footpaths are all natural ways.
Active transport is a very important process enabling cells to accumulate molecules or ions from the environment against the concentration gradient. The active transport system most intensively studied is the membrane ATPase of the red blood cell and many other membranes.
Hope this helps
Answer:
In both cases, the gravitational pull of the sun is 'added' to the gravitational pull of the moon on Earth, causing the oceans to bulge a bit more than usual. This means that high tides are higher and low tides are lower than average. These are called 'spring tides.
Explanation: