The diagram represents protein synthesis which is essential to the function of all cells. What is represented by letter C?
A)
codon
B)
mRNA
C)
ribosome
D) tRNA

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.