Why are bones easily visible in X-ray’s but not so much the skin and other tissue? A. because X-ray waves are absorbed by skin and other tissues but not by bones

B. because X-ray waves are attracted to bones but repelled by skin and other tissues

C. because X-ray waves pass easily through skin and other tissues but are absorbed by bones

D. because X-ray waves change the molecular structure of bones but do not affect the molecular structure of skin and other tissues

d) center of the mid-ocean ridge

give brainleysest

sinserly,

steckh986

interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle