What is vibrato in your own words?

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?

In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.

There are only about 250,000 known fossil species. true or false