How does motion detector determine how far away from it you are standing?

Which taxon group is more specific, in regards to organisms that are in that group? mammalia animalia

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

As a small change in a person's dna can cause a genetic disorder