Cyanobacteria are important to the evolution and advancements of other life on earth because they

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird

The diagram below shows the layers of a rock having a trilobite: a rock column labeled rock is shown. the column has three layers. the bottommost layer of the rock has one shaded rhomboid shape, the middle layer has a rhombus with a diagonal along with two identical organisms marked as, trilobite, in the key, the top layer has two semicircles. a key is shown on the right side of the diagram. the shaded rhombus is marked as a, the rhombus with the diagonal is marked as b, the semicircle is marked as c which statement about the rock fossils is true?

Which structure secretary’s hormones directly into the bloodstream without using a duct a) lacrimal gland b) adrenal gland c) oil gland d) salivary gland