Sharks of the Cenozoic were largely filter feeders, despite their intimidating teeth! Platybeldon had very large narrow lower tusks that were used for fighting sharks. Megaldon sharks could technically eat mastodons. Shark jaws were huge, disproprotionately so, compared to their bodies.

What makes the results of a scientific experiment accurate? a) having multiple trials b) lacking any supporting data c) working in a lab d) using a hypothesis that is always true

Which is not a type of symmetry? a. asymmetryb. radial symmetryc. bilateral symmetryd. lateral symmetry

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.