A Beka Science 9 - 11.2
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- What is a coelacanth?
- It is a lobe-finned fish.
- What are whole-specimen fossils?
- They are an entire animal preserved nearly intact by freezing, dessication (drying out), or entrapment in a bog or tar pit.
- What is circular reasoning?
- A process in which evidence drawn from a particular assumption is used to "prove" that assumption.
- What are Print fossils?
- Animal tracks, outlines of leaves and feathers, and imprints of skin in mud preserved when the mud hardened into rock: Print fossils can reveal the design of a bird's feathers, the structure of leaves and plants, or even the pattern of a dinosaur's hide.
- What is a trilobite?
- A small, extinct marine crustacean.
- What is called paleontology?
- The study of fossils.
- What is a plesiosaur?
- A dinosaurlike sea creature thought to have become extingct 65 million years ago.
- What are fossils?
- Fossils are the remains or impressions of plants, animals, and humans preserved in sedimentary rock.
- What are the four major eras?
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1)Precambrian Era
2)Paleozoic("ancient life")Era
3)Mesozoic("intermediate life")Era
4)Cenozoic("recent life")Era - What are Mold fossils?
- Fossils that are formed when mud buries a plant or animal and quickly hardens, leaving a hollow mold, or impression, in the rock when the organism decays.
- What are eras?
- Major time divisions in the geologic column; each era covers several hundred million years.
- What are Petrified fossils?
- Animal buried by water and sediments; minerals in the mud replaced or strengthened the structure of the fossil, preserving it.
- What are index fossils?
- fossils that are considered characteristic of a specific period and are used to identify rock layers in the field.
- What are anomalies?
- fossils that are commonly found in the "wrong" order in apparently undisturbed strata.
- What is radiometric dating?
- A technique evolutionists use to assign "absolute" ages to rocks and fossils; this technique is based on the fact that radioactive elements decay into other elements(known as their "daughter" elements) at relatively constant rates.
- What are Resin fossils?
- Fossils that are formed when leaves and other plant parts, insects, or frogs and other small animals are trapped in large masses of tree sap, which later harden into a rocklike substance known as amber.
- What is the geologic column(also known as the geologic time chart)?
- An arrangement of rock layers supposedly charting the course of the earth's history, with the earth's earliest history at the bottom.