The answer is C. The method which involves counting the number of organism in a specific area is sampling. It is one common method to estimate the population of certain organisms used by biologists. In a given range, the number of plot is determined and per plot the number of individuals is multiplied to the number of plots then this results to an approximate population size.
A
theta wave is a type of brain wave associated with sleep spindles.
<span>
Theta
waves are involved in daydreaming and sleep and also connected to experiencing
and feeling deep and raw emotions. Those waves have benefits because can help
in improving our intuition and creativity.</span>
The correct answer is (A.) bacteriophages using DNA to infect bacteria.
Explanation
1. In 1952, Alfred Hershey and Martha Chase did experiment to find the genetic material in organisms.
2.Bacteriophages (viruses that affect bacteria) were the key element for Hershey and Chase experiment.
3.In which they concluded DNA as genetic material as bacteriophages use DNA to infect bacteria and not protein.