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.
Answer: Yes HIV can be transmitted by semen
Explanation: Because HIV can easily be transmitted through dirty needles, vaginal secretions, semen, breast milk, and blood.
From what they decompose, it is turned into energy through form (s) of respiration.
Answer:
The signs we see in a person when he or she thinks about sucide.
There are many signs :
1. Depression
2.loosing self confidence
3.physical changes
4.loss of appetite
5. Continued sadness
Answer:
B) noticing the thickness of the ventricle walls
Explanation:
Since the pressure in the right ventricle is higher than the atria, the muscle thickness is 5 to 10 mm. The muscle that has to bear the greatest pressure is the left ventricle and, therefore, the thickness of its wall is between 10 and 30 mm, since it must pump blood into the greater or systemic circulation. For this reason it is possible to differentiate between the right and left part
.
