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Geologic Time
Geologic Time
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geologic time
Flashcards
21 cards
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Questions
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Answers
1
What gas started to saturate the atmosphere after the evolution of photosynthesis.
methane
carbon dioxide
oxygen
ammonia
2
Which of the following was not present in large amounts in Earth's early oceans and atmosphere
ammonia
methane
carbon dioxide
oxygen
3
This uses DNA or amino acid sequences to estimate how closely related species are to each other
absolute dating
relative dating
molecular clock
gene splicing
4
The longest division of geologic time in Earth's history was the
Precambrian
Pharenozoic
Jurassic
Mesozoic
5
Where might organic molecules have come from early in Earth's history?
asteroids
comets
space dust
dinosaur poop
6
Preserved remains or traces of organisims are
fossils
gross
cyanobacteria
stored DNA
7
What molecule do scientists believe was the first to evolve?
DNA
Carbohydrates
RNA
Proteins
8
How do we know about the history of life on Earth?
from movies like the land before time
the fossil record
time travel
detailed knowledge of modern organisms like molecular clocks
9
What does LUCA stand for
Last universal cooperative alliance
living universal common archea
large ugly creepy amphibian
last universal common ancestor
10
Over 90% of all organisms that have ever lived are now
regrouped
present on Earth
extinct
fossilised
11
Which of the following is Mrs. Culver's Favorite Major League Baseball team?
Braves
Rockies
Angels
Cubs
12
What are the divisions of time from largest to smallest?
Eon-Period - Era
Eon-Era-Period
Period- Eon- Era
Era- Eon- Period
13
What kind of dating tells the approximate age of a fossil?
absolute dating
relative dating
molecular clock
prom dating
14
What were the first type of cells?
prokaryotic
postkaryotic
monokaryotic
eukaryotic
15
Organic molecules always contain
nitrogen
carbon
hydrogen
oxygen
16
How old is the Earth?
4.6 years old
2000-5000 years old
4.6 billion years old
4.6 million years old
17
What event gave rise to our universe?
The Big Crunch
Supernova
Two Massive Black Holes Colliding
The Big Bang
18
Oxygen was a poisonous gas to early organisms
true
false
19
For what fraction have humans been on the Earth in comparison to all of Earth's history?
about half of the entire history
about 1/3 of the Earth's history
a super tiny fraction of history
about 1/10 of Earth's history
20
We are all made of stardust.
true
sometimes
false
21
What kind of dating tells if a fossil is older or younger than another fossil
carbon dating
molecular clock
absolute dating
relative dating
