FIG. 149 Ethmoid bone from above. The ethmoid bone is exceedingly light and spongy, and cubical in shape; it is situated at the anterior part of the base of the cranium, between the two orbits, at the roof of the nose, and contributes to each of these cavities.IG. 151 Ethmoid bone from behind. FIG. 152 Ethmoid bone from the right side. FIG. 153 Lateral wall of nasal cavity, showing ethmoid bone in position. In front of the lamina papyracea are some broken air cells which are overlapped and completed by the lacrimal bone and the frontal process of the maxilla.
Spinosad is a natural substance made by a soil bacterium that can be toxic to insects. It is a mixture of two chemicals called spinosyn A and spinosyn D. It is used to control a wide variety of pests.These include thrips, leafminers, spider mites, mosquitoes, ants, fruit flies and others.pinosad is also found in some drugs regulated by the US Food and Drug Administration. These products are used to control head lice on people and fleas on dogs and cats.
Spinosaurus is a genus of theropod dinosaur that lived in what now is North Africa, during the upper Albian to upper Turonian stages of the Cretaceous period, about 112 to 93.5 million years ago. This genus was known first from Egyptian remains discovered in 1912 and described by German paleontologist Ernst Stromer in 1915. The original remains were destroyed in World War II, but additional material has come to light in recent years. It is unclear whether one or two species are represented in th