Scientists use control groups to show how something will change under normal circumstances.
Because there are countless numbers of animals and having an organized, internationally recognized system of classification allow scientists to put new-found creatures into previously made categories.Answer:Scientists use DNA to place animals into groups.
To find the variable in the experament
Statistics
if groups of scientists didn't work together they would go at different speeds and probably get different results need to describe it completely so that when they use that same factor in an experiment they have the data.
first scientists grouped organisms into groups . Each group was called phylum. Then they separated each phylum into smaller and smaller groups called class
I beleve that they use them to test medicine and human vaccinations.
i dont knoww
Scientists often use control groups, randomization, and blinding techniques to reduce the effects of uncontrollable variables in their experiments. Control groups help establish a baseline for comparison, randomization helps minimize bias, and blinding techniques prevent researchers and participants from being influenced by their expectations.
Because there are countless numbers of animals and having an organized, internationally recognized system of classification allow scientists to put new-found creatures into previously made categories.Answer:Scientists use DNA to place animals into groups.
To find the variable in the experament
yes gum is scientific. you can use it for expirements and if you look closer it has many ingredients
Scientists use controlled experiments because the results are consistent and can be replicated. The control of an experiment is the value that you are controlling the dependent variable to.
The presece of a vertebrate.
A term political scientists might use to describe groups within a population is demographics. Demographics take not of the different types of people that live in an area along with other information like income.
Statistics
You use a control group to compare the results of the experimental group to. The control group has the "normal" results. After the experiment, you can tell if and what has changed from the control groups results
The groups that taxonomists (that's the name for people who classify species) use are Kingdom, Phylum, Class, Order, Family, Genus, Species.