The deserts are actually one of the most common and widespread landscapes on the planet Earth. The deserts, combined of all types, are covering around 33% of the landmass, thus one third of the whole landmass on the planet.
These multiple types of deserts, like the hot and dry desert type, cold desert, coastal desert, semiarid desert. All of them have their own unique characteristics that define them more specifically. The hot and dry deserts are the ones that are hot throughout all of the year, also being located deeper into the mainland. The cold deserts are found in the Northern Hemisphere, they have hot summers and very cold winters. The coastal deserts are located along the coasts, so despite being very dry, they do tend to have high humidity. The semiarid deserts are deserts that are not as dry as the other types, they receive more rainfall, though that happens just in few days of the year, so they are dry for the most of it again, with the biggest difference being that they have slightly more vegetation.
<span>Homologous (This means they are the same chromosome from each parnet, matched together) </span>
There are two basic types of ER. Both rough ER and smooth ER have the same types of membranes but they have different shapes. Rough ER looks like sheets or disks of bumpy membranes while smooth ER looks more like tubes. Rough ER is called rough because it has ribosomes attached to its surface.
<span>The double membranes of smooth and rough ER form sacs called </span>cisternae. Protein molecules are synthesized and collected in the cisternal space/lumen<span>. When enough proteins have been synthesized, they collect and are pinched off in </span>vesicles<span>. The vesicles often move to the Golgi apparatus for additional protein packaging and distribution. </span>
Smooth ER (SER)<span> acts as a storage organelle. It is important in the creation and storage of lipids and </span>steroids<span>. Steroids are a type of ringed organic molecule used for many purposes in an organism. They are not always about building the muscle mass of a weight lifter. Cells in your body that release oils also have more SER than most cells. </span><span>
God Bless:)</span>
The total energy from an isolated system is constant; energy can be changed from one form to another, but can't be created or destroyed.
Http://www.biocab.org/Carbon_Dioxide_CO2.html
