The answer is <span>To become specialized, cells need to control the production of proteins coded for in their DNA.
All genetic information in a cell's DNA is not fully expressed at all times. On the contrary, in different cell lines, different DNA segments are expressed at different times. Some genes are active in unspecialized cells and later deactivate, some are activated only in specialized cells, for example. These are facultative genes which are active when needed, unlike constitutive genes which are expressed continually. Therefore, <u>t</u></span><span><u>o become specialized, cells need to control the production of proteins coded for in their DNA. </u>DNA segments, however, remain in cell and are not destroyed. Also, during the mitosis, all genes are passed, not only required genes.</span>
The answer is 114 compressions per minute. Chest compression is a technique used during cardiopulmonary resuscitation or for the treatment of choking.The latest CPR procedure does not allow or make use of mouth to mouth breathing as part of the protocol for an 8 year old and adults. The emphasis now being on continuously doing he chest compressions
Answer:
Youngest to Oldest
Shale with ammonite
Limestone with unknown fossil
Basalt
Sandstone with trilobite
