<span>c ribosomes. lots and lots of ribosomes. Thousands of these protein forming organells and in the cytoplasm. When they are on the ER it is called rough ER (because of its sandpaper like appearence). Rough ER makes proteins either for inside the cell (to another organell) or outside the cell. If the ER does not have ribosomes, it is smooth ER. Smooth ER makes lipidds and steroids.</span>
Disorders of collagen are characterized by deterioration of connective tissues. The reason w<span>hy you would expect such diseases to produce widely varying symptoms because </span><span>connective tissues and collagen inside it are found everywhere in the body! so almost all of body organs are involved in these disorders.</span>
The concept of the struggle for existence<span> concerns the competition or battle for resources needed to live. It can refer to human society, or to organisms in nature. The concept is ancient, and the term </span>struggle for existence<span> was in use by the end of the 18th century. From the 17th century onwards the concept was associated with a population exceeding resources.
Hope this helped!
STSN</span>
