Which two physical properties of graphite make it a good mineral for use in pencils? 1. luster and fracture
2. cleavage and color
3. hardness and streak
4. greasy feel and composition

Study the image of this rock. which characteristic best supports its formation from sedimentary processes? it has many layers. it is coarse-grained. its grain shape is round. its texture is non-banded.

Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen

What amino acid is coded for by this sequence after the mutation