Answer:A weak immune system
Explanation:
When people get older their immune system becomes weak including the function of the T cells which are cells responsible for fighting infections.
This means it becomes hard to recover from a flue when someone get sick and they are always prone to sickness since their immune system no longer has the power to fight infections.
Answer:
The first industry to be shaped by the large factory system was: textiles.
Answer:
The correct answer is D. Although there is variability in the ages at which infants acquire various skills, the order in which skills are acquired is fairly consistent.
Explanation:
An infant's motor development occurs from the center of the body, from the top to the bottom. This means they control their heads, for example, before their feet.
It is fair to say that the ages in which an infant acquires the skills are consistent; he/she starts to develop gross and fine skills regularly.
