Name and describe the division of gymnosperms

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin

Which to produce involved from a symbiotic relationship of organisms which resulted in eukaryotic organisms contain chloroplast