<span>A is the correct answer. The developmental norms are stages at which humans typically develop the ability to successfully complete an activity without aid, for example, being able to walk. When people have reached the age of the norm and cannot complete the activity, there may be cause for concern.</span>
Answer:
The minimum number of days per week you should exercise is three days
~Hello there!
Your question: How many sperm cells are produced by the average human male?
Your answer: An average human can produced 525 billion sperm cells.
Any queries ^?
Happy Studying!
