Answer:
I'm presuming you mean the three different subcatagories or taxa as there around 25/26 mammalian orders. The three taxa are - Prototheria or Monotreme = Mammals that lay eggs Metatheria Marsupial = Mammals with external development pouches.
Explanation:
1. Once a dam is constructed, electricity can be produced at a constant rate.
<span>2. If electricity is not needed, the sluice gates can be shut, stopping electricity generation. The water can be saved for use another time when electricity demand is high. </span>
<span>3. Dams are designed to last many decades and so can contribute to the generation of electricity for many years / decades. </span>
<span>4. The lake that forms behind the dam can be used for water sports and leisure / pleasure activities. Often large dams become tourist attractions in their own right. </span><span> </span>
<span>5. The build up of water in the lake means that energy can be stored until needed, when the water is released to produce electricity.
6</span><span>. When in use, electricity produced by dam systems do not produce green house gases. They do not pollute the atmosphere </span>
<span>DISADVANATGES: </span>
<span>1. Dams are extremely expensive to build and must be built to a very high</span>
<span>2. The high cost of dam construction means that they must operate for many decades to become profitable. </span>
<span>3. The flooding of large areas of land means that the natural environment is destroyed. </span>
<span>4. People living in villages and towns that are in the valley to be flooded, must move out. This means that they lose their farms and businesses. In some countries, people are forcibly removed so that hydro-power schemes can go ahead. </span>
<span>5. Although modern planning and design of dams is good, in the past old dams have been known to be breached (the dam gives under the weight of water in the lake). This has led to deaths and flooding. </span>
<span>6. Dams built blocking the progress of a river in one country usually means that the water supply from the same river in the following country is out of their control. This can lead to serious problems between neighbouring countries. </span>
<span>7 Building a large dam alters the natural water table level. For example, the building of the Aswan Dam in Egypt has altered the level of the water table. This is slowly leading to damage of many of its ancient monuments as salts and destructive minerals are deposited in the stone work from ‘rising damp’ caused by the changing water table level.</span>
Answer:
may be the answer is
DNA polymerase is an enzyme that works to transport DNA from the nucleus to the cytoplasm.
Answer:
B
Explanation:
Hope this helps, oh and did i forget to tell you you got this?
Ida is "Asteroid" kind of celestial body.
<u>Answer:</u> Option A
<u>Explanation:</u>
Ida is an asymmetrical and heavy asteroid in main asteroid belt, orbited by "Dactyl" a natural satellite. Ida come under S-type and known as Koronis family member, which resulted from giant body nearly ranged between 200 to 300 km in diameter.
Asteroids are small planets which lie between inner solar system. Comets are celestial objects having nucleus of ice and dust. Dwarf planets are non-satellite, planetary-mass objects that does not dominate their region of space. Meteoroids are in outer space and categorize as small rocky or metallic bodies. Planets are large objects like Jupiter or Earth that orbits a star.
