Stem cells arise from the inner mass of the cell
Signalling factors trigger differentiation in stem cells
Genes that lead to the production of undifferentiated blood cells are activated
Signalling factors cause undifferentiated blood cells to produce red blood cells
Explanation:
Red blood cells are formed in the bone marrow. The precursor to the RBC is stem cell which is undifferentiated and pluripotent. The stem cell gets differentiated to form immature RBCs. Immature RBC then gets divided and becomes mature. Stem cell giving rise to RBC is called Haemoctytoblast. The process of erythropoiesis takes 2 days to form new red blood cells
The answer is c since a coccus is any spherical or roughly spherical bacterium.
Answer:
During this stage new organelles are being synthesized (made), so the cell requires both structural proteins and enzymes, resulting in great amount of protein synthesis. Color the G1 phase green on the cell cycle drawing.
Explanation:
The pollutants from humans placed on the surface of the earth impact groundwater, They can percolate vertically downward through soil, eventually reaching groundwater.
<h3>How does groundwater pollution happen? </h3>
Groundwater located near irregular landfills can be contaminated with fluids. When infiltrating the soil, these fluids reach the groundwater, contaminating them with bacteria.
in this case, is possible to say that They can percolate vertically downward through soil, eventually reaching groundwater.
See more about groundwater at brainly.com/question/10005777
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id help you but im in middle school not high
