Which explains why the fossils from ancient Cambrian layers of rocks are very different from those found in recent layers of rocks? Select one: Life forms change over time. Rocks change over time. Earth is constantly shifting its axis. Land gets tilted and twisted over time mixing up the fossils.

Researchers want to use edna to look for an invasive species in the water which of the steps would be likely do last

Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.

Label the following as inner or outer planets; a) has 67 moons made mostly of hydrogen and helium b) has rings c)no moons, high volcanic activity d) known as the red planet, has 2 moons e) very thin atmosphere, moons or rings