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WorksheetsDay 7 Quiz - Earth History
Total questions: 10
Worksheet time: 15mins
Which of these statements best represents relative dating?
Determining the approximate age of a fossil by comparing it to similar rocks and fossils of known age
Determining the precise age of a fossil by using radioactive dating to measures
Determining the age of fossil by counting the layers of rock
The Geologic Time Scale is a record of
Every living thing ever to exist
Earth’s history, divided into blocks of time distinguished by geologic and evolutionary events.
The mass of rocks and fossils that make up the Earth’s continental crust
Molecular Clocks help us explain
How long ago two sequences diverged based on rate of change
The shape of different proteins based on their amino acid sequence
The physical characteristics of the last common ancestor of humans, chimpanzees, and gorillas.
Based on the current scientific evidence, how old is the Earth?
4-6 thousand years old
460 million years old
4.6 billion years old
What does the saying “We are made of stardust!” refer to
That the existence of life on Earth is magical
That all of the atoms that make up the Earth and everything on it come from exploding stars
That everything living breathes in stardust from the atmosphere
What was formed in the Miller-Urey experiments?
Amino acids
Proteins
DNA
Which of these was one of the earliest prokaryotic cells?
LUCA
Paramecium
A brain cell
The earliest cells were probably
autotrophs
heterotrophs
chemotrophs
How did photosynthesis make cellular respiration possible?
Because photosynthetic bacteria became an important source of food for other organisms
Because it made lots of toxic oxygen that other living organisms took advantage of for energy
Because the toxic oxygen it created killed off competing organisms
The which of these theories explains how early cells developed organelles like mitochondria
Germ Theory
Endosymbiotic Theory
RNA World Hypothesis
