Check out this website http://science.jrank.org/pages/3421/Hummingbirds-Biology-hummingbirds.html
The immune system. It produces antibodies which fight the bacteria or virus that caused the infection
Be there for them and let them know they're not alone.
According to Bronsted-Lowry acid concept
an acid is a that donate a proton" and a base is a "proton acceptor."so
will look for that molecule to which <span>H2O</span> "donates" H+to become <span>OH−</span>. so answer will be..
. <span>NH3+H2O→NH+4+O<span>H<span>−
so correct option is NH3
hope it helps</span></span></span>
I am thinking the rock that forms from lava that cools quickly is D) Obsidian.