A Limestone rock thats my answer
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.
Answer:
1)double 2) nitrogen bases 3)sugar and phosphates 4)guanine
Explanation:
just trust me
Gene flow is one of the mechanisms that can change the frequencies of alleles by transfer the genes from the gene pool of one population to another. Newly-arrived bonobos will bring the gametes that can reproduce. So, the introduction of new alleles will increase the variability within a population and will allow the new combinations of traits.
Answer: 3. Atomic number
Explanation: Good luck! :D
