Answer:
She could change the agar cubes in order to find a different result or try a different type of dye in her experiment
Explanation:
Answer:
B
Explanation:
Chemical reactions occur when chemical bonds between atoms are formed or broken and the substances that go into a chemical reaction are called the reactants.
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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True.
Nitrogen-fixing bacteria converts atmospheric nitrogen into forms which plants can readily use. These microorganisms are essential in the nitrogen cycle. Nitrogen in the atmosphere is known to be inert or non-reactive. The nitrogen fixation process breaks the triple bond between the nitrogen making it usable in other processes.