Answer:
Microvilli are lined with blood vessels as well as lymphatic vessels.
Explanation:
The small intestine is one of the most important part of the body. This is the main site of digestion and absorption of food in the body. The three main parts of small intestine - dedenum, jejenum and ileum.
The small intestine has both villi and microvilli in its structure. These villi helps in increase in the surface area for absorption. Microvilli are lined with the blood vessels only and not with the lymphatic vessel. This vessels are directly connected to the hepatic portal system.
Thus, the correct answer is option (C).
When Harry asks “What is different with this plant that does not grow very well compared with the other house plants?”
One factor that would limit the settlement on top of living organisms is the panels hang vertically from the side of a dock.
The factors that affect settlements can explain how an organism adapts to its environment. There can be numerous factors based on the situations that can limit the settlement of an organism in its new environment. Competition, predation, disturbances, resources, etc can affect the establishment of a species in an area.
A set of panels hanging vertically can hinder the settlement on top of living organisms. Many organisms are known to survive in the harsh stormy seas and many are known to live in places where freshwater and ocean surface water mix (estuaries). But if the place where the animal such as crabs and snails have to reach is hung vertically it might be difficult for them to establish themselves as it will be harder for them to reach and hang on to the panels.
Learn more about factors affecting settlement here:
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The human immunodeficiency virus (HIV) that causes the disease known as aids selectively infects helper T cells (CD4+).
This retrovirus also infects macrophages and dendritic cells. When CD4+ T cell numbers decrease below a critical level (due to the killing of this cells with different mechanisms), cell-mediated immunity is lost. As a result, the body becomes progressively more susceptible to infections, leading to the development of AIDS.
<span> HIV can be transmitted only via body fluids like blood, semen, pre-seminal fluid, rectal fluids, vaginal fluids, and breast milk, which means that people usually get or transmit HIV through sexual behaviours and use of the needle. For HIV infection, these fluids must come in direct contact with a mucous membrane or damaged tissue. Another way is to be directly injected into the bloodstream (from a needle for example).</span>
Isoleucine, Ieucine, lysine, and methionine are all present in beef.
