First,get something where you can get the fish and where you can fill it up with water then just start taking out the mixture with a small net
Bones in your skull (cranial and facial bones), ears, neck, vertebrae, sacrum and tailbone and ribcage (sternum and ribs).
Answer:
In an experiment, the researcher needs to have a control group with an experimental group where both groups are identical in every way except that the controlled group does not gets the experimental treatment.
Sometimes, it is not possible to do a test or the experiment utilizing a controlled trial (due to ethical reasons or no practical method available). All things considered, a researcher may test a theory by making predictions about outcomes or patterns that ought to be found in nature if the hypothesis is right.
Methane the most, small amount of oxygen and other gases
