The formation of platelets from pluripotent stem cells, including the influence of hormones.
Pluripotent stem cells form are the cells that can form all the cells of the body including ectoderm, mesoderm and endoderm but not the extra-embryonic structures like placenta.
Platelets are formed by a precursor cell called megakaryocyte which are present in the bone marrow. It is actually present in the kidney in the form of myeloid stem cells which forms the megakaryoblast which transforms into megakaryocytes.
Thousands of plateletes are formed by the megakarocytes. Thrombopoietin is the hormone which regulates plateletes formation.
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B is the answer because they are curious about how the bees find flowers. they want to know the answer, therefore curiosity would be my answer.
I think it is D
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<span>Which is an indicator of poor air quality?
4. Smog</span>
Every one except the 4th one just did it on edgeunity