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
Answer:
its new to our body. Saying that, it dosen't know how to fight this off, but once you get the coronavirus, you are ammune to that type because then your body knows how to fight it off. :)
D. To convert sound waves into mechanical waves.
In general, nondisjunction can occur in any form of cell division that involves ordered distribution of chromosomal material. There are three forms of nondisjunction: failure of a pair of homologous chromosomes to separate in <span>meiosis I, failure of sister chromatids to separate during meiosis II, and
</span>failure of sister chromatids to separate during metaphase going into anaphase of <span>mitosis. so it will be mitosis </span><span>hanse.
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The correct answer is letter D, the deflection of winds from heading due north or south. The coriolis effect is a result of the Earth's rotation and it may also affect weather patterns and ocean currents around the globe. It can also have the ability to change the movement of storms where it swirls clockwise in the Southern hemisphere and counterclockwise in the Northern hemisphere.
