The pH within the stomach is much more acidic than the pH within the duodenum as the duodenum contains an alkaline solution to neutralise the acidity
Answer:
B
Explanation:
the fundamental unit of heredity
The cohesion – tension theory of sap ascent explains how how water is pulled up from the roots to the top of the plant. Evaporation from mesophyll cells in the leaves produces a negative water potential gradient that causes water and minerals to move upwards from the roots through the xylem.
The number of arrangements of n objects in a circle is (n − 1)! So, it can be planted in 4 different ways...
Natural selection is a factor of evolution that occurs when natural disasters or organisms moving to another place cause the gene pool to shrink
