20. Which of the following is associated with the hormone thyroxine? (5 Points)
has four iodine atoms
is more potent than T3
regulates blood calcium
milk production

this is math not biology xd

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this