One half of a duplicated chromosome is called a sister chromatid
The best answer is: introducing exotic species into
<span>
new environments. This can be actually bad, as new species can actually reduce the biodiversity in the environments to which they're introduced</span> , such when cats hunt indigenous birds.
I was a bit thinking about the last option too: making sure local people benefit from conservation efforts.
This is not one of the classical goals of the conservation efforts, but since the previous one is definitely correct, i don't this one is. (it's not that it's not a goal, but it isn't a main focus)
I am not sure if its going to be right or wrong but I would pick either C or A
Cell wall.......... Hope it helps, Have a nice day :)
The answer is natural selection
