Individuals which would have such difficulties would most likely report that they're experiencing funcitonal fixedness - C. This is a phenomenon in which people cannot use certain tools for anything other than their official and proper use for which they were intended.
Ignorance
but it called public health generalism
Answer is b. Protein helps in increasing energy and enhancing performance of athletes. This helps rebuild muscle tissue and facilitate strength gains following intense exercise.
Conception occurs when the male gamete fertilizes the female gamete.
Skin immunity is a property of skin that allows it to resist infections from pathogens. In addition to providing a passive physical barrier against infection, the skin also contains elements of the innate and adaptive immune systems which allows it to actively fight infections. I hope that this helps.