When you inhale muscles increase the size of your chest and in process your lungs expand. The increase of volume decreases the pressure in the lungs thus air rushes in.
The tadpole contains gills but doesn't have legs nor lungs.
however the adult frog contains the opposite. It has both lungs and legs but doesn't have gills. This is due to tadpole leaves in the water and the frog leaves on both land and sometimes in the water.
The parents had two recessive traits for a bent thumb.
The answer is homeostasis (b)
Answer:
The largest problem is that single viruses may create multiple plaques, resulting on overestimates of the number of viruses present.
Explanation:
Plague assay allows to measure the concentration of viruses in a sample, it is a widely used approach for determining the quantity of infectious virus. Therefore the amount of plaques created by a single virus is not a concern when evaluating the results of plaque assays.