Answer:
Three layers of tissue form the heart wall. The outer layer of the heart wall is the epicardium, the middle layer is the myocardium, and the inner layer is the endocardium.
Our health is crucial when it comes to the environment. The environment can affect our health through physical, internal, and chemical factors. For example, if the environment is extremely polluted, us humans would get sick easily and there would be many birth defects.
People learn to empathize feelings of other people by putting them self’s in the other persons show to try to see what there going through in life. We can improve by starting to not focus only on your self and to start you can help other people around for example a family member.
Answer:
Uhhh that sentence contradicts itself....
Explanation:
How can they see you without seeing you?
Answer: Control group
Explanation:
Control group is a group which is used as a benchmark or standard for comparison of the changes that occur in the dependent or experimental variable. This group does not receive any treatment in the experiment but only kept for the purpose of comparison with other variables.
In the given study, the use of the group that does not take the drug is the example of the control group.
