Answer:
All these are emerging infectious diseases.
Explanation:
The emerging infectious diseases refer to the infections, which have appeared freshly within a population or those whose occurrence or geographic range is enhancing briskly or is threatening to upsurge in the coming time. The emerging infections can be a result of:
1. Known agents, which have dispersed to novel geographic locations or new populations.
2. Previously unknown or undetermined infectious agents.
3. Previously known agents whose function in particular diseases was not determined previously.
According to WHO, infectious diseases are emerging at a rate, which has not been noticed before. Since the 1970s, many infectious diseases have been discovered like Ebola, SARS, avian influenza, mad cow disease, and West Nile encephalitis.
With the individuals traveling much more to far greater distances in comparison to the past, encountering with wild animals, and living in more densely populated regions has caused the emerging infectious diseases to spread briskly and is resulting in global epidemics, which is a major worry.
A wildlife sanctuary is a place that is strictly controlled in order to protect a species from extinction.
Answer:absorption and secretion
Explanation:
The main function of epithelial cells with large amount of cytoplasm is absorption and secretion. They're usually present sweat and oil glands of the skin due to its secretive function.
Answer:
strong, dense outer layer of a bone- compact bone
tissue in the hollow part of the bone- bone marrow
lightweight, inner layer of a bone that
contains many small spaces- spongy bone
Explanation:
Compact bone is also known as cortical bone and is a major property and source of skeletal frames in the body due to its strong, dense outer layer.
Bone marrow is the tissue in the hollow part of the bone. It is important as it helps in the production of blood cells
Spongy bone is also known as cancellous bone. It is the lightweight, inner layer of a bone that contains many small spaces which contains a high proportion of bone marrow.
I believe you're looking for the process of absorption.
In absorption, digested, simple and soluble food molecules is absorbed into the body through the wall of small intestine. They move by methods of diffusion and active transport.
Villi in the intestinal wall also helps the absorption process. Villi can provide a large surface area so that more food can be absorbed at the same time. Also, the network of blood capillaries can help maintain a steep concentration gradient so that food molecules can be absorbed faster.
Absorption process is the process after digestion. Followed by it, assimilation can help the food become part of the cells and get used.
