Which of the following is NOT a part of every cell? A. Cell Membrane

B. DNA

C. Cytoplasm

D. Ribosomes

E. Cell Wall

At which location in earth’s interior does the top density continue to increase as thickness decreases?

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.

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