1. Alleged father: a man who a mother asserts has parented a child. This ultimately implies that, the man in question may not necessarily be the biological father of the child. Thus, a deoxyribonucleic acid (DNA) test should be carried out in order to determine the paternity of the child.
2. Adoptive father: a man who takes legal responsibility for a child. This individual isn't the biological father of the child but has agreed to take responsibility for the child's upbringing after making a legal commitment or through a consensual agreement.
3. Biological mother: a woman whose egg created the child. This individual carried the baby through the gestation period and is legally recognized as the mother of a child.
4. Caregiver: a man or woman who cares for a child. A caregiver isn't the biological father or mother of a child, he or she has only agreed to play those roles for a predetermined amount of money.
Specificity is the answer. You are targeting a certain muscle in your body to improve it for an upcoming sport or activity like running a marathon or entering a Mr.Olympian body-building competition.
