Females have two X chromosomes while males have one X and one Y chromosome
<span>The EPA under the Toxic Substances Control Act also referred to as the TSCA are responsible for setting rules and regulations regarding polychlorinated biphenyl, PCB. Tina should reference the TSCA to help support her protest against the very toxic chemicals and compounds in PCB.</span>
Plants showing hydrotropism grow in response to water.
They share the same thing
