Proteins are modified within the nucols
Answer:
Following are the seven basic requirements of plants to grow properly.
1) Light: Light is the basic need of plant. With the help of light, photosynthesis occurs.
2)Water: Water is used by the plants as a reactant in making their own food.
3) Temperature: In optimum temperature, plants grow fast.
4) Time: There is proper time for the sowing of every plant.
5) Nutrients: Nutrients are food of plants which are used for their growth and development.
6) Proper place or medium: Plants require a soft nutritious soil for germination.
7) Air: Plants need air because it contains oxygen and carbondioxide which is used by the plants during photosynthesis and respiration.
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.
Lymphoma is a blood cancer that happens in the body's lymphatic system. The white blood cells change and grow out of whack. I hope this helps
Answer:
b. ecosystems in a region, species in an ecosystem, and genes and alleles in a species.
Explanation:
Biodiversity has three levels - ecosystem, species and genetic diversity. Therefore, Biodiversity can be defined as the variability among living organisms involving terrestrial, marine, and other aquatic ecosystems, genes and alleles in a species and their ecological complexes such as diversity within species, and between species of the ecosystems.
