ANSWER:
okay so they were 100 hyenas and 20 died
so that makes it 100 - 20 = 80 , so there was 80 hyenas when 20 died
then 35 were born so 80 + 35 = 115
than 5 migrated INTO the population meaning 115 + 5 = 120
At the end of the year, there were 120 hyenas in the population.
~batmans wife dun dun dun...aka ~serenitybella
The correct answer is option D, Speciation
In the allopatric speciation, the geographical barriers such as mountains or rivers causes isolation of the population. The two population groups get completely separate from each other and thus develop different sexual preferences for mating.
Answer:
I think A or B could be a possibility to your answer
The heaviest elements settled in the Earth's center.
The Earth on the other hand starts with a core of iron and radioactive materials such as uranium and plutonium, which release energy in the form of heat, through a process known as nuclear fission. It went through a fusion stage - a "liquid-pasty" state - which allowed that, due to gravity, the denser materials sank towards the center, while the lighter ones floated towards the crust, a process called planetary differentiation.