Answer:
Explanation:
A boundary that distinguishes inside from outside the cell yet allows materials to enter or leave the cell.
The cell needs a barrier for protection, rigidity and also for easy transportation.
Answer: B) an increase in gene flow between the bird populations.
Explanation:
The formation of tiny island will connect the island and the mainland. The distance between the two habitats will reduce due to the tiny island which can also become another habitat for birds. Thus the gene flow will increase between the birds of two different habitats as the population of two habitats can mate and produce progeny.
Explanation:
Hydrogen and Oxygen have many properties in common, but they have a lot of differences as well. Both are gases, both are colorless, both are odorless. They both differ from each other in the following regard:
Hydrogen has one unpaired electron whereas oxygen has two unpaired electrons.
Hydrogen can form only one covalent bond whereas oxygen can form two covalent bonds.
The most common isotope in hydrogen has no neutron in its nucleus whereas there are 8 neutrons in most common isotope of oxygen.
Atomic mass of oxygen is far greater than that of hydrogen. Hydrogen has an atomic mass of 1.00794u where as oxygen has an atomic mass of 15.999u
Mutation caused by external relationships. If you were to have an isolated population, they would be forced to have incest to survive. You need genetic variation from other creatures.
