During which phase mitosis do the nuclear membrane nucleolus and dissolve

Iron reacts with oxygen to produce iron oxide (rust). this reaction is represented in an equation as 4fe + xo2 → 2fe2o3. identify the value of x that will balance the equation.

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake

Located at the epidermal-dermal junction of the skin. select all true statements about the transformation of melanocytes into abnormal cell