Answer:
The correct answer is - Small streams that flow into larger streams and wetlands
Explanation:
Freshwater wetlands are territories where soil is covered by standing water or a territory where the ground is wet. In contrast to estuaries, freshwater wetlands are not associated with the sea. They can be found along the limits of streams, lakes, lakes. Freshwater wetlands are profoundly beneficial situations that help a bounty of micro-invertebrates, crustaceans, fish, frogs and water birds.
There are 4 fundamental sorts of Freshwater Wetlands, Ponds, Marshes, Swamps, and Peat lowlands. A Marsh is generally found close to a stream, lake or flowing waters.
Thus, the correct answer is - Small streams that flow into larger streams and wetlands.
Duckweed performs photosynthesis. Photosynthesis produces oxygen. They take in carbon dioxide and produce oxygen. So, when it is kept in the light cycle it will produce oxygen which will get dissolved in the water.
But the flask with water does not contain dissolved oxygen. So, at the end of light cycle the flask containing the plant will have more DO.
Now, in dark the plant does not produce oxygen. Instead it uses it to break the glucose and produce carbon dioxide. While this is not the case with the flask without the weed.
So, the flask without the plant will have more DO then the flask with the plant.
So, at the end of light cycle the flask with the weed will have more oxygen while at the end of dark cycle the flask with water will have more DO.
CD4 and CD 8 are molecules present on the surface of T cells where they interact with major histocompatibility (MHC) Molecules.
CD4 and CD8 improve T cell signalling by attaching to MHC class II (CD4) or MHC class I (CD8) molecules on APCs.
- The association of CD4 with MHC class II significantly decreases the number of antigenic peptides necessary for T cell activation (5) and significantly boosts cytokine output by helper T cells.
The MHC molecules' wide polymorphism is their distinguishing trait.
- This polymorphism is crucial for T cell antigen recognition.
- A T cell detects antigen as a peptide bound by a specific allelic variation of an MHC molecule and will not identify the identical peptide bound by other MHC molecules.
- This type of T cell activity is known as MHC limitation.
Hence, the correct answer is option C
Learn more about MHC here,
brainly.com/question/13259839
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It’s c hope this helps you
