Answer:
Scientists estimate that at least 99.9 percent of all species of plants and animals that ever lived are now extinct.
Explanation:
(Happy to help)
Answer:
1
Explanation:
Lichen are usually the first thing to grow on bare rock, making them a pioneer species. Fun fact, you can use lichen to determine if the air quality in an ecosystem is polluted.
Hope this helped :)
Answer:
The answer should be A. applied research scientist.
Explanation:
I don't know if you mean, what should viruses have to be living, if it's so :
They must be cellular, meaning they should have a cytoplasm a cell membrane and some organelles (at least ribosome).
But if you mean to say what in common they have with livings:
I can say that they have DNA, thats common both with viruses and livings.
Amino acids are the monomers of proteins :)
