Mammalia - mammals
<span>Aves - birds </span>
<span>Amphibia - amphibians </span>
<span>Reptilia - reptiles </span>
<span>Chondrichthyes - sharks, stingrays</span>
A gene is a small section of DNA?<span> that contains the instructions for a </span>specific<span>molecule, usually a </span>protein?. The purpose of genes?<span> is to store information. Each gene contains the information required to build </span>specific proteins<span> needed in an</span>organism<span>.</span>
The alarm stage<span>, the resistance </span>stage<span>, and the exhaustion </span>stage<span>. ... The changes that occur in the alarm </span>stage<span> prepare ypu to either "fight" the stressor or "take flight" and escape. Thus, this inital </span>reaction<span> of the</span>body<span> to </span>stress<span> is called the fight-or-flight </span>response<span>.</span>
Although cells are diverse, all cells have certain parts in common. The parts include a plasma membrane, cytoplasm, ribosomes, and DNA. The plasma membrane (also called the cell membrane) is a thin coat of lipids that surrounds a cell.
Hope it helps ^^
All arthropods are invertebrates with an exoskeleton, segmented body, and jointed appendages.