Answer:
True
Explanation:
They protect you against illness and disease
This is an example of natural selection. The finches with the most ideal beaks survive because the environment they live in allows them to gather resources more easily than other species.
The principles of probability can be used to predict the outcomes of genetic crosse
Answer: Option 4.
The fresh water is hypotonic and the salt solution is Hypertonic.
Explanation:
Hypotonic solution is a solution that have little dissolved solutes i.e low osmotic pressure compare to other solution. When a cell is put in hypotonic solution, it take in water and the cell swell up and it does not burst due to it's cell wall thereby becoming turgid or hard.
Hypertonic solution is the solution where the concentration of solute is higher outside the cell than inside the cell. Example is saline water.when a cell is placed in Hypertonic solution it will shrinks because it losses water.
Survival of the fittest (which means those who have better adaptions for there environment will survive and spread on their genes while the lass well adapted ones will die off)
