If you flip a penny, the chance of it turning up heads is?
2 answers:
50% would be heads and 50% for tails
You might be interested in
The spelling is the only difference
It takes the Earth (approximately) 364.25 days to revolve around the sun. That's why we have leap days.
Hope that helps!
Answer:
Chemicals that are secreted from antigen-presenting cells then activate helper T cells.
Explanation: