Answer:
4. B cells become activated by interacting with helper T cells.
1. B cells display antigens in MHC class II receptors on the cell surface.
2. Antibodies released by plasma cells bind to the antigen so they will be destroyed by other cells of the immune system.
3.B cells rearrange their DNA to create a unique B-cell receptor.
5. B cells undergo clonal expansion.
6. B cells digest antigens that bind to the antibodies on their surface.
Explanation:
B-cells get activated by interacting with helper T cells when they bind to the antigen to receptors i.e (MHC class II receptors on the cell surface) on the surface of the cell. Series of activities such as release by plasma cells which cause rearrangement of B cells causes the cell to divide and proliferate. The process through which daughter cells arise from a parent cell called clonal expansion.
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Answer:
order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.
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The similarities are: 1. Both are compounds, different types of atoms.
2. Both contain H and O 3. Both are formed form covalent bonds or non metals.
3. Both are clear liquids at room temperature.
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Answer:
Human papilloma virus.
Explanation:
STDs are sexually transmitted disease that are more often transferred through the sexual contact. They are the common contagious disease that affects the human population.
Genital warts are marked by the pink or brown swellings near the genital area. They can occur on any reproductive part of the body. The causative agent of the warts is the human papilloma virus and can be converted into cancer if left untreated.
Thus, the answer is human papilloma virus.
If you are referring to bacteria, and other possible microorganisms, they are found everywhere whether that be the air surrounding us, to abiotic, non living components of the environment, such as water, soil, etc. Generally though, one celled organisms are found in soil. Substantially, it has been noted that a single hand full of soil, contains more microbes than the people in a given country etc.