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WorksheetsGeologic History of Earth/Embryology
Total questions: 25
Worksheet time: 16mins
The basalt intrusion occurred...
after the limestone was deposited.
before the granite was formed.
before the limestone was deposited.
before all three layers were formed.
Which of the following conclusions can be drawn from the data in this diagram?
Jellyfish and trilobites never competed for resources.
Trilobites and dinosaurs did not live at the same time.
Most mammals are in competition with birds for resources.
Mammals did not appear until after the dinosaurs went extinct.
The illustration here shows rock layers in their original order, along with a fracture in some rock layers caused by an earthquake. Based on the evidence in the illustration, an earthquake occurred -
before layer W was deposited.
before layer X was deposited
after layer Y was deposited.
after layer Z was deposited.
When examining rock layers, you will find the oldest layers at the bottom. Newer minerals and rock are piled on top and, over time, this creates distinct rock layers. This is called _______.
The Law of Superstition
The Law of Suspicion
The Law of Horizontality
The Law of Superposition
Fossils of trees were discovered in a sedimentary rock layer, and in a rock layer below were fossils of clams. Based on this evidence, what conclusion can be made about the sequence of climates in the past in the area where the fossils were discovered?
Based on the evidence, it can be assumed that this area was an underwater forest.
Based on the evidence, it can be assumed that this area was a forest before it was a beach or ocean.
Based on the evidence, it can be assumed that this area was an ocean or beach before it was a forest.
The mineralized remains of organisms and the rock layers in which they are found
Fossil
Rock Strata
Stratigraphy
Fossil Record
The study of rock layers
Fossil
Rock Strata
Stratigraphy
Fossil Record
The preserved remains or trace of an organism that was once living
Fossil
Rock Strata
Stratigraphy
Fossil Record
What is comparative embryology?
Compares embryos of different species, showing how all animals are related.
Medical research that uses embryonic stem cells.
The study of environmental influences on embryos.
The act of sequencing DNA of embryos.
How is comparative embryology used as evidence for evolution?
The similarities in development across organisms show how they are related.
The development of embryos shows evolution occurring in organisms before birth.
The similarities of embryos shows that all organisms used to once look like each other.
Comparative embryology is not used as evidence for evolution.
Human embryos have gill slits during development. What is the best explanation for this?
Humans are technically considered fish in the earliest stages of development.
This is how all embryos breathe before lungs develop.
It is a common mutation found in most vertebrate species.
It is an ancestral trait preserved in an organism's development.
How does embryology support the Theory of Evolution?
It shows that embryos who develop similarly share a common ancestor
It shows that embryos who develop similarly are not related to one another
It shows that organisms have the ability to evolve, or change, over time
When vertebrates are in the early stages of development (an embryo) they all possess....
gill slits and tails
backbone and hands
hands and feet
tongue and mouth
