8 How is the geologic time scale divided? F)
By eons, eras, periods, and epochs.
By chronological order.
H)
By millions of years.
3)
All of the above.

Explain why phospholipid molecules form a bilayer. (3 marks)

If two parents who's blood types are both b produce a child that has blood type o, what can you say about the parent's genotybes? oa) one is ii ob) one is ibi oc) both are bi od) nothing, this is impossible

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior