Answer:
A native-species
Explanation:
A native-species is one that normally lives and thrives in a particular ecosystem. They are any species that developed within the surrounding habitat.
They are usually found in an ecosystem because of natural processes like evolution or natural selection. They are known to occur naturally within a given habitat as opposed to species that are introduced.
Answer:
O silicon (Si)
Explanation:
-Valence electrons are electrons of the outermost shell which can participate in chemical bonding. ... -As in silicon, four electrons are present in the outermost shell, so silicon has Four valence electrons.
Answer:
A
Explanation:
I hope this helps. Sorry if i'm wrong.
Answer:
yes
Explanation:
it will cost less to raise very productive animals because the money that would have been spent on treating infections would be put into a more productive venture
