Misc: how many grooves are there on each side of a 45 r.p.m. record?

Questions

Biology Every human has one of these on their tummies.?

Biology How many large holes are in your head?

Biology This complex substance makes up all living things.?

Biology What is normal body temperature for an adult human (in degrees fahrenheit)?

Botany The practice of joining the parts of two plants to make them grow as one is called ?