These useless leg bones are vestigial structures. It was believed that the only vertebrates existing were water creatures. Over time, they developed hips and legs as they eventually walked out of the water which later evolved to land creatures. Some of these are mammals, and they later moved back to the water. Biologists believe this to have occurred 50 million years ago.
Here is the answer of the given question above.
Often times, non-human life in an urban ecosystem is more disturbed in a way that changes happen rapidly, such as the soil and plant cover and temperature and water availability. In this kind of ecosystem, there is no stability and sustainability. On the other hand, in an undeveloped forest ecosystem, plants play a major role and that, the lives in this kind of ecosystem is undisturbed, making it more ideal for many animals to live. Hope this answer helps.
The ER makes proteins and the nucleus holds the DNA of the cell. So proteins are manufactured according to instructions encoded in the genes in the nucleus. These genes are now transcripted into RNA then leaves the nucleus and interacts with ribosomes on the ER, which now links amino acids together to form protein chains. The Cell Membrane is a selective barrier on the boundary of every cell. Its function is to allow the passage of oxygen, nutrients, and wastes to service the entire volume of th cell. The lysosomes are digestive organelles where macromolecules and other wastes are hydrolyzed by enzymes. Their main function is to process the molecules taken in through the cell membrane and to recycle won out cell parts. After ribosome synthesize proteins, the proteins are transported into the rough E.R. Then, proteins are enclosed into a vesicle and transported to the golgi apparatus, where processing, packaging, and transport of proteins is done. After the protein is processed, it will then bud off from the golgi apparatus (as vesicles) and transport to wherever it is needed. The nucleus is responsible for making the RNA, which is then sent to the E.R. Next, the E.R. sends the RNA to the ribosomes, where they link amino acids together to form protein chains. The E.R gets the RNA from the nucleus and sends it to the ribosomes to make proteins. The rough E.R specializes in protein synthesis, which means the ribosomes will attach to the E.R and synthesize the proteins. Next, the proteins enter the lumen space (interior of E.R) where they can be modified. Lastly, the proteins are sent off to the lumen of the smooth E.R.
The answer is skin, good luck.
Asking a question is the first part of the scientific process (followed by research, hypothesis, experiment, data/analysis and conclusion). A question that can be answered using the scientific process must have some answers, must be able to be tested or tried through an experiment and must lead to a supposition or proposed explanation that is verified.
