Johanna, a 7-year-old girl, is significantly shorter than normal for her age. her doctor recommends treatment with a hormone before her growth plates ossify in her long bones. which hormone is recommended?

Growth Hormone.

Explanation:

According to my research on studies conducted by various geneticists, I can say that based on the information provided within the question the hormone that would most likely be recommended to Johanna would be Growth Hormone. Just like the name suggests it is a hormone that helps human development in regards to height growth.

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answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.