Mold fossil formed when remains trapped tree sap
cast fossil impressions from very thin objects trapped in mud and transformed into rock
trace fossil formed when remains of living things leave and impression on a rock
petrified fossil preserved remains that are transformed into rock
imprint fossil preserved records of life like a footprint or a trail imprint fossils a raised fossil that has filled in the impression from
amber fossil a raised fossil that has filled in the impression from a mold

Aperson with age is more likely to catch diseases that healthy people usually don’t catch. what are these infections called?

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.

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals