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WorksheetsGeologic Time and Biogeology
Total questions: 30
Worksheet time: 11mins
In the picture which mouse fur color is selected for?
grey
white
both
neither
What would lead to an advantageous trait NOT being naturally selected for in a population?
advantageous traits will always be selected and cause adaptation
it is random which traits are selected and cause adaptations
the individuals with the trait did not produce many or any offspring
Which letter represents an intrusion?
A
X
B
R
View the following images of a limb from a cat, whale, and bat. Which of the following two are evidence of common ancestry using comparative anatomy?
The environmental differences in which these organisms live caused each limb to evolve differently.
Each of these organisms lives in the same environment.
None of these organisms lived at the same time according to the geologic time scale.
The limbs each have similarities that include two lower limb bones, individual "finger" bones, and metacarpals ("wrist" bones).
What is the age of a rock or fossil compared to other rocks or fossils?
relative age
absolute age
geologic age
comparative age
What is the age of a rock or fossil in number of years?
geologic age
relative age
absolute age
proven age
Identify what is occurring in image A.
erosion and weathering
fault
deposition
uplift
Identify what is happening in image F.
cementation and compaction
uplift
fault
erosion and weathering
Which answer puts the events in order by when they occurred?
A B C D E F
E F B A C D
B A C D E F
E F A B C D
Identify which is the oldest geologic feature of the cross-section shown.
2
3
B
A
Identify which rock layer is the youngest.
4
5
6
1
If a sample contains 100 grams of a radioactive isotope, how much will remain after two half lives?
50 grams
10 grams
25 grams
12.5 grams
Isotopes are the same element with a different number of ______.
protons
electrons
radioactive molecules
neutrons
Mercury-197 is used for kidney scans and has a half life of 3 days. If it takes 6 days to get to the hospital and a patient needs 4 grams, how much should the hospital order?
4 grams
16 grams
197 grams
8 grams
What is the half-life of a radio-active element?
the time it takes for all of an unstable isotope to decay to a stable one
the breakdown of atoms to another element
the time it takes for half of an unstable isotope to decay to a stable one
Why are different radioactive elements used to age different aged samples?
Each element has a different number of protons.
All elements have the same half-life length.
Each element has a different half-life length.
What must there be for natural selection to take place? (select 2)
selection
competition/advantage
catastrophe
variation
Which of the following is NOT something that can be learned from studying the geologic time column?
the age of Earth
evolutionary changes through time
environmental changes through time
the layers of Earth
What is a random variation in DNA that can happen in any generation?
mutation
adaptation
variation
extinction
For adaptation to occur in a population the selected trait must cause...
an advantage
a disadvantage
evolution
proliferation
Due to geologic processes much of the rock record is lost.
True
False
Geologists assume that the processes that formed ancient geologic structures are still occurring the same way today.
True
False
What divided geologic time on the geologic time scale?
a specific amount of time
each is 100 million years
environmental changes or geologic events
What are fossils called that help estimate the ages of rock layers and fossils? These fossils are widespread and only found in one geologic time period.
trace fossils
absolute fossils
relative fossils
index fossils
Which is not a disturbance in rock layers?
Intrusion
Faulting
Folding
Superposition
Is the fault older or younger than the extrusion?
older
younger
The earth is ______________of years old
Hundreds
Millions
Billions
Trillions
What was the earth like during PreCambrian time?
tropical climate with warm shallow seas
vegetation and tectonic movement
cooler temperatures because of nuclear winter
intense volcanic activity, very warm temperatures
