<span>Stem cell research is being conducted for cancer, diabetes and spinal cord injuries. But stem cell research has not included bird flu, sometimes called avian influenza Bird flu is caused by a virus which are not effected by stem cells applications.</span>
Answer:
Carbon is pulled out of the atmosphere when trees use photosynthesis
Your answer is B.
The warming of said environment or planet. by emitting carbon and other gasses that create a thin layer of different gasses that trap the heat from the suns rays and breaks down the ozone layer.
The correct answer is E. A cell
Explanation:
The cell is the smallest unit of life that exists and that constitutes all living organisms and body tissues including unicellular and multicellular organisms. Due to this, cells are considered as the fundamental unit of life as even the smallest and simplest living organisms are made of cells or at least made of one cell.
Cells are commonly made up of three main parts: the cell membrane which surrounds the cell and controls the substances that enter and leave it; the nucleus which is the structure within the cell that contains the nucleolus and most of the cell's DNA; and the cytoplasm that is the fluid inside the cell that contains other tiny cell particles with specific functions, such as the Golgi apparatus, mitochondria, and the endoplasmic reticulum. This applies to all cells except to prokaryotic cells because these do not contain a nucleus but a chromosome in the middle of the cell.
A biological process such as photosynthesis. 13. Billions of years ago, Earth's atmosphere<span> was composed </span>primarily<span> of carbon dioxide</span>
