Answer and Explanation:
HIV is a sexually transmitted disease that is caused by AIDS, a virus. Malaria is a protozoan disease that is cause by <em>plasmodium spp</em>. Both the virus and sporozoites of plasmodium live inside humans. However, in malaria, the sporozoites are inactive form of the parasite and they live in the human liver. The human being acts as an intermediate host for the life cycle to be complete.
In HIV, the virus incorporates its DNA into the host(human) genome and uses the resources to produce proteins that are found in the blood. Using a condom helps limit the transmission of HIV because the virus lives in the blood cells but does not affect the transmission of malaria because the sporozoites live in the liver and other organs. HIV can be transmitted sexually, transfusion with contaminated blood, sharing of infected needles and syringes while malaria is only transmitted through a mosquito bite.
Agricultural chemicals is an example of a nonpit source of freshwater pollution
Answer:
1. Liver
2. Pancreas
3. Lungs
4. Saliva
5. Small intestine
6. Large intestine
Explanation:
1. Liver is a large, infact the largest, organ found in the digestive system. It has variety of functions ranging from detoxification to digestion. The liver functions in digestion by secreting a substance called BILE which helps in the breakdown of fat in the small intestine.
2. Pancreas is another accessory digestive organ which serves as a endocrine organ which secretes enzymes that aid in the digestion of protein and carbohydrate molecules.
3. Lungs are respiratory organs whose function is key to the respiratory system. They are the organs that serve as a medium of the entry of oxygen and removal of carbon dioxide, a process called GAS EXCHANGE.
4. Saliva is a liquid substance secreted by the salivary gland in the mouth. Saliva contains certain enzymes; most notably is the AMYLASE that breaks down starch into sugar.
5. Small intestine is another organ in the digestive system composed of the ileum, jejenum and duodenum. The small intestine is the organ where the absorption of nutrients into the blood from the digested food takes place.
6. Large intestine is the extension of the small intestine whose function is to absorb extra water from undigested food and pass out the remaining as feaces.
<span>The nitrogenous base pairs, which are linked by hydrogen </span>bonds<span> that also </span>hold<span> the </span>strands together<span>, are between this backbone.
There are 3 hydrogen </span>bonds <span>between guanine and cytosine.</span>
Answer:
The correct answer to the question above is "PLATE COUNT TECHNIQUE"
Explanation:
DIRECT MICROSCOPIC OBSERVATION is the method of estimating the number of microorganism using microscope. Samples to be estimated are placed on microscope slides which allow few cells in a small volume to be counted. Then, the value determined is used to estimate the total number of cells mathematically. It is only difficult to aee small cells which may affect precision.
VIABLE COUNT is the estimation of the living cells in a given sample.
PLATE COUNT TECHNIQUE is used to estimate the number of viable cells that are present in a given sample of actively growing or dividing cells based on bacteria cells found on agar plate. A sample to be counted is diluted in a solution that will not kill the microorganisms, this is done to enable accurate counting as only living bacteria will be counted.
