When the sun rises it gives us energy. we use rivers for drinking and we also use rivers for transportation.
At the same time, carbon dioxide molecules diffuse rapidly out of the red blood cells<span>, down their concentration gradient, and into your lungs. When </span>water<span> molecules </span>move <span>freely </span>across a cell membrane<span>, the process is called OSMOSIS , which is just a special type of simple diffusion.</span>
- excess sweating
- consumption of salty foods
The answer is Gravity. To ensure the one-way flow of blood
the veins contain a network of valves which arteries do not have. The reason is
for the veins to counteract the force of gravity on flow of blood. For example,
to increase the pressure of the blood back to the heart the veins must counteract
the force of the gravity.
<span> </span>
Answer:
a. After replication is complete, the new DNAs, called daughter DNA , are identical to each other.
b. The new DNA strand that grows continuously in the 5' to 3' direction is called the leading strand
c. The enzyme that can replicate DNA is called DNA polymerase
d. During DNA replication, an open section of DNA, in which a DNA polymerase can replicate DNA, is called a replication fork
e. Okazaki fragments are the short sections of DNA that are synthesized on the lagging strand of the replicating DNA
