The study of the relationship between structures and functions is at the very heart of biology. This relationship is expressed in living beings by the adaptation of the first to the second and poses a series of absolutely fundamental problems, such as the relationship between causality and finality, analogy and homology, structural improvement and evolutionary level, etc.
For example, the structure of the hand is related to its function, thanks to the fingers and the thumb it is easy to wear and store objects.
The zigzag structure of the intestine is related to its absorption function, as this makes it possible to increase the contact surface between the alimentary bolus and the intestinal wall, and thus to increase the absorption.
<span>Organelles are needed for all cells to sustain life. Cell theory states:
-that all living things are made of cells
-all cells camef rom preexisting cells
-and all cells are the basic structure of life.
The function or organelles is that it carries the little organs which are needed for specific functions in the body.</span>
Answer:
16
It is given that the number of chromosomes present in each onion root tip cell is 16. Hence, the number of chromosomes in the cell will be 16 at G1 phase, after S phase and after M phase
Adenosine Tri-phosphate.........
