Time To Know Time
The largest time unit on the geologic time scale is an eon. How many total eons are there through Earth's history?
2
How are fossils formed?
Something dies, gets covered in rock, rocks fill holes of skeleton, preserves the organism
Spontaneous Generation says life comes from nonlife. If meat is left to rot and sealed off in a container, ACCORDING TO THIS THEORY, what should we see after a while? (Not what he actually saw)
Flies or some sort of organism.
What time scale (Eon, Era, Period, or Epoch) on the geologic time scale gives us the most specific idea of what happened in Earth's history at that time?
Epochs, the smallest time unit.
Whats the name of Mr. Utter's best friend?
Zac
The Precambrian Eon was the first and longest Eon in Earth's history, what was life like during this Eon?
Not very much life and the life that was there were microorganisms.
How do we tell how old a rock is?
Radiometric Dating/Carbon-14 Dating
Biogenesis says life can only come from other life. An experiment where food was put in a flask, steralized, then turned on its side so that the food was in contact with the outside surface, what did the scientist see?
Microorganisms found the food, started eating, and made more life.
What time scale (Eon, Era, Period, or Epoch) on the geologic time scale gives us the most general idea of what happened in Earth's history at that time?
Eons, the longest time unit
If Mr. Utter could meet one celebrity, not a singer (dont pick kid cudi), who would it be?
The Rock
Towards the end of the Precambrian Eon, Cyanobacteria paved the way to allow for the Cambrian Explosion to happen. What did cyanobacteria do that helped lead to the Cambrian Explosion?
Put Oxygen in the atmosphere which allowed life to thrive.
How can we tell how old rocks and fossils are compared to other rocks and fossils we find?
We look at the Superposition of the rocks and can compare them. The younger rock is on top and the older is on the bottom.
What is the main idea behind the Primordial Soup Hypothesis?
There was a mix of a bunch of chemicals on early Earth and as the world continued, a perfect mix of ingredients caused life to happen.
When mass extinction events happen, only a small percentage of organisms tend to survive. When they reproduce, what evolutionary idea is being observed?
Natural Selection
What color car does Mr. Utter drive?
White. Her names Betty White
The K-T boundary is a layer of rock between different Eras of life in the Phenerozoic Eon. It contains a lot of Iridium. Iridium is not an element that is easily found on Earth. What does this suggest happened between certain Eras?
An asteroid or meteor or something big from space must have hit the Earth.
What is the half-life of an element and how do we use it to date rocks and fossils?
Its how long it takes HALF of the element to decay. We can measure how much of an isotope is left and see how long it takes for HALF of it to decay.
Endosymbiont theory says that prokaryotes gave rise to eukaryotes. How does this theory explain that?
A prokaryote ate another prokaryote and instead of digesting it, they worked together and the eaten prokaryote turned into organelles.
A fossil of a specific species is found on the east coast of South America. That same fossil of the same species is found across the ocean on the west coast of Africa. What does that imply about the way Earth's land masses used to be?
They were all together at some point or at least much closer (Pangea)
Mr. Utter is a football fan. He loves the Lions. Who is his favorite player on the Lions?
Amon-Ra St. Brown (the Sun God)
Throughout the life of Earth, what do you think is the most important thing that led to life being able to thrive? (This is technically an opinion. On the Quiz, this question will be worded differently)
Explain it to me. Blow me away with your explanations. I want to feel like Mary Poppins in a windstorm with how much you blow me away with your opinion.
Imagine 2 rock layers on top of each other. The bottom rock layer is solid bed rock with not many different fossils. The top rock layer is a soft clay that has a plethora of different fossils. What does that tell us?
It tells us something changed in Earth's climate between these times. It also tells us that there was more diverse life in the younger rock layer time period.
What is the difference between a prokaryote and a eukaryote?
Eukaryotes have a nucleus.
At the end of the day, we have no idea what the Earth was like 4.6 billion years ago. We can't know anything for certain.
Who did Mr. Utter pick to win March Madness in his serious bracket?
Duke