Which constellation is home to the star forming nebula called the heart nebula?

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?