Answer:
Cellular specialisation is the process by which an initial undifferentiated cell, gets specialized (attains a structure and function characteristic of a given cell type). In this case, the embryonic stem cells, undergo specialisation to give the many different cells and tissues of the body. Without cellular specialisation during embryo development, we wouldnt have all these varying tissue types fine-tuned to their functions.
Answer:
bibliography is a list of the books and other sources that are referred to in a scholarly work-such as an essay, term paper, dissertation, or a book. The bibliography comes at the end of the work.
Explanation:
Answer:
By definition, a body system is primarily comprised of different organs and tissues that work one another to achieve a common body process. These body systems would include:
Explanation:
Circulatory system - concerns with the circulation of blood
Digestive system - breaking down of food particles
Skeletal system - composed of bone structures serving as our body's framework
Nervous system - composed of nerve cells that responds to different stimuli
Respiratory system - concerns of utilizing the entry of oxygen and the exhalation of carbon dioxide.
Explanation:
As organisms evolved to become photosynthetic, they used the process of photosynthesis, which extracted the carbon dioxide in Earth's atmosphere along with water on the surface of the Earth to create sugar they needed for survival. Due to this process, carbon dioxide is decreased in the atmosphere with oxygen being released as the waste product of the process, which had led to the increase of oxygen in Earth's early atmosphere.
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