What can cause an unconformity between rock layers?

a) mixing of strata

b) erosion

c) continuous deposition

d) a change in fossils

include atleast one sentence of why your answer is correct!

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.