I believe i<span>mproving air circulation.
Hope this helps!</span>
Marine fish gills have cells that have the ability to can remove salt by pumping it into the salt water.
This is active transport in real life.
Hope this helps!
Answer:
A negative feedback initiated by the external simuli or the products of a reaction aims to reduce the products/ output of the reaction. Hence In negative feedback the stimulus is reduced. An example of a negative feedback would be if a person had an elevated body temperature, the homeostatic response would be to lower the body temperature.
<span>1 ATP molecule allows 3 Na+ to move out of the cell
and 2 K+ to enter.
So 50 ATP molecules allow 150 Sodium ions to move out and it allows 100 Potassium ions to move in
so correct option is C
hope it helps</span>
Fossils up to 75,000 years old can be dated with Carbon-14.
Radio isotopes can be used for the age determination of the fossils. Carbon-14 is a common isotope which is used for that purpose. But the half- life of the Carbon-14 is relatively small as 5730 years. That means the amount of Carbon-14 will be half after every 5730 years. Hence, decay is very fast. So Carbon-14 cannot be used forage determination which is more than 75000 years due to the low accuracy.
