When the heated part of the mantle rises through the cooler part , this is an example of Convection.
Hi,
You did not provide the length of paper clip but i searched this exercise to find the length of the paper clip as So, a small paperclip measures 3.0 cm so i will answer your question according to this length.
The size of a human cell is around 30um and the question is asking that how many would fit along the length of the paper clip measuring 3cm.
3 cm = 30000 microns
= 30000/30
= 1000 cells.
So, if we line up 1000 human skins cells side-by-side, they would fit along the length of the paperclip.
Note: <em>If the length of paper clip is different in your excercise like 1 cm etc, simply multiply the 1 with 10000 and divide the resultant value with 30, this way you can get cell number for the length of any clip.</em>
Hope it helps!
Answer:
Crenation
Explanation:
i don't know how to explain since your question is not clear
Fire algae are known as dinoflagellates because they have two flagella.
A flagellum (pl. flagella) is a whip-like structure that allows a cell to move.
Answer:
Presence of specific antigen receptors on the surface of Immunocompetent B and T cells make them to generate immune response against specific antigens only.
Explanation:
The cellular and antibody-mediated immune responses are specific in nature. This means these immune responses are generated for particular foreign molecules or antigens only. These immune responses include B and T lymphocytes. Before T cells leave the thymus or B cells leave the red bone marrow, they develop immunocompetence. Immunocompetence is the ability to carry out adaptive immune responses. During this process. B cells and T cells make distinctive proteins and insert them into their plasma membranes. Some of these proteins function as antigen receptors capable of recognizing specific antigens. This is why the B and T cell-mediated third line of defense are specific in nature.
For example, antibody-mediated immune responses generate the memory cells for most previously encountered antigens to ensure the generation of more rapid and vigorous response during any further encounter with the same antigen.
