Primary treatment in a sewage treatment plant is
<span>removing solids from the water</span>
Answer:
Rh+ blood can be given only once to a non-sensitized person who is Rh- because it develops antibodies and after one exposure blood will be rejected. If an Rh- person is sensitive to Rh+ blood and receives a transfusion of Rh+ blood, it is likely that the donors cells will be rejected and the blood cells will be killed.
Fossil Z is younger than fossil Y
Answer:
Mutation causes brand new alleles the others just modify the rates at which preexisting alleles appear in the population.
First we can look at the taxonomic order:
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
The largest level would be the one closest to the top of the list because it is the least specific and therefore the most inclusive. Out of the choices given, phylum is closest to the top, so that is the answer.