Mirrors focus light by _

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance

Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?