AP BIOLOGY

EVOLUTION

EVIDENCE FOR EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ fossils form when small creatures are trapped in tree sap and the sap hardens.
A
Amber
B
Lumber
C
Timber
D
Red
Explanation: 

Detailed explanation-1: -Amber fossils are made when insects or other very small animals become trapped in thick tree sap. The sap hardens over time to become amber, and the body of the animal is preserved intact. Large animals such as humans cannot become stuck in tree sap, so they do not form amber fossils.

Detailed explanation-2: -What is an amber ? This is another type of fossilization where the organism is entrapped in a biologically inert environment and it is preserved wholly. For the insects, which frequently occur in this type of fossilization, “chitinous skeletons are little altered, but the soft inner tissues are missing."

Detailed explanation-3: -Over time these layers become rock, which we call sedimentary rock. Anything inside this rock is preserved and fossilized, even our chunk of tree sap here. This fossilized tree sap is called amber and contains the complete body of the mosquito preserved.

There is 1 question to complete.