10 points

are easier to work with than reality and can be manipulated.

a. computers

b. experiments

c. observations

d. models

Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells

When ash and dust begin to settle on the ground, they eventually become compacted by

What is gene expression control that occurs after the generation of rna