Answer is: coupled transport differs from primary active transport due to the fact that it uses electrochemical potential difference as a direct source of energy.
Primary active transport directly uses metabolic energy (adenosine triphosphate- ATP) to transport molecules across a membrane.
In secondary active transport (coupled transport) there is no direct coupling of ATP, <span>energy derived from the pumping of protons across a cell membrane.</span>
Answer:
1. Motor, 2. spinal cord to muscle
Explanation:
motor neurons are the second part of a reflex arc that actually causes the movement associated with the reflex arc.
The amount of total energy at each trophic level decreases as it moves through, so 90% is lost at each level. This means that only 10 percent of the energy at any trophic level is transferred to the next level; and the rest is lost as heat.
In this case, if a plant ecosystem has 3000000 kilocalories (kcal) of energy, about 300000 kcal will be transferred to primary consumers (for example grass hoppers). If the red-tailed hawks are tertiary consumers, they will get 3000 kcal of energy.
Answer:
Through a circumstance known as "secondary transfer DNA", or "Touch DNA".
Explanation:
Most times when a crime is committed, DNA samples are obtained from surfaces in the scene where the crime was committed. There is a very huge possibility of picking up the DNA of someone who was never at the scene of the crime and this is a result of a condition known as Touch DNA.
Because we touch several objects which can be moved to different locations and touch people who are also always mobile, our DNA cells can find their ways to a crime scene where we had never physically been to. This can lead to false verdicts of guilt.
The greatest volume of blood is found in veins
