The hydrochloric acid in the stomach helps protect against disease because it kills many microorganisms and toxins in food.
Hi!
Energy will flow through an ecosystem in one <em>direction, </em>from the sun or inorganic compounds to<em> autotrophs </em>and then to various <em>heterotrophs. </em>
The energy flow in an area will be delivering light energy to <em>autotrophs</em>, which make their food from the energy the sun produces.
The energy flow also delivers energy via inorganic compounds to <em>heterotrophs</em>, which do not make their own food.
Hopefully, this helps! =)
That would be the <span>Cone-bearing plants.</span>
Cell walls are made out of cellulose and they give a sturdy structure to the cells (if you notice they have a rectangular shape)
