Answer:
Environmental engineer
Explanation:
Environmental engineers design strategies and solutions to deal issues using the concepts of architecture, biochemical engineering, physics and chemistry. They are working to promote recycling, waste management, environmental health and management of environmental degradation.
Answer:
Explanation:
DNA is a double stranded molecule. When DNA is copied the two strand of DNA (old strands) separate and new nucleotides match up with the two separated strands. This process creates two identical double stranded DNA molecules are formed. Each DNA molecule contains one strand of the original DNA molecule and one newly synthesized (made) strand.
hope it helps :)
Answer:
A. Sodium is needed to generate an action potential.
Explanation:
Action potentials are generated by the special types of the voltage-gated channels which are embedded in the plasma membrane of the cell.
These channels are shut when the membrane potential is near zero and the voltage-gated channels open only when the membrane potential is more than the threshold voltage.
When the channels are open then they allow the flow of sodium ions which ultimately changes the electrochemical gradient which rises the membrane potential. This rise in membrane potential generates the action potential.
<span>All planets revolve around the sun. - Incorrect. There are many planets that revolve around other stars.
</span>