___ drives subduction are a converging plate boundary.

a.) ridge push
b.) slab pull and ridge push
c.) ridge push and mantle convection
d.) mantle convection and slab pull

Which codon is the code for the amino acid histidine (his)?

What is thought to have caused the mass extinction at the end of the cretaceous period?

White-tailed deer are considered to be an overpopulated species in the central united states. which of these events probably contributed the most to white-tailed deer exceeding their carrying capacity?