Name: ______________________________________________  Period:___________________

History of Life Webquest

Go to http://highered.mcgraw-hill.com/sites/9834092339/student_view0/chapter26/animation_-_miller-urey_experiment.html

1.      Name the six gases that most likely made up the atmosphere of early Earth?

 

 

2.      What gas was NOT part of the atmosphere of early Earth?

 

 

3.      What was needed to combine these early gases into organic compounds?

 

 

4.      What did the Urey-Miller experiment simulate?

 

 

5.      What organic compounds were found after one week?

 

 

6.      What were some of the organic compounds formed from the first group of intermediate products?

 

Go to http://www.sumanasinc.com/webcontent/animations/content/organelles.html

  1. Mitochondria and chloroplasts in eukaryotic cells bears a striking physical resemblance to ____________________________________.
  2. Name three ways that prokaryotes are similar to mitochondria and chloroplasts:
    1.  
    2.  
    3.  
  1. What does the endosymbiont theory imply?

 

  1. Who proposed the endosymbiont theory?

 

  1. According to the endosymbiont theory, what happens to the “prokaryotic prey”?

 

  1. What are the reactants of aerobic respiration?

 

  1. What is made during aerobic respiration?

 

  1. How is endoplasmic reticulum probably made?

 

  1. What is one of the reactants of photosynthesis?

 

  1. What is made during photosynthesis?

 

In the lower left-hand corner, click on the “Menu” button and select the “2. Activity”. Complete the activity.

Go to http://highered.mcgraw-hill.com/sites/9834092339/student_view0/chapter4/animation_-_endosymbiosis.html

  1. The endoplasmic reticulum and the nuclear envelope may have evolved from what?

 

  1. What does the theory of endosymbiosis state?

 

  1. What are endosymbionts?

 

  1. According to the theory, how did mitochondria evolve?

 

  1. According to the theory, how did chloroplasts evolve?

 

  1. Name four pieces of evidence of the theory of endosymbiosis.

a.

 

b.

 

c.

 

d.

 

Go to http://www.bbc.com/earth/bespoke/story/20150123-earths-25-biggest-turning-points/

  1. Watch the video clip. What was our Earth formed from 4.5 billion years ago?

 

  1. How long ago did life on Earth first begin?

 

  1. For the first half of the Earth’s history, what element was missing from our atmosphere?

 

  1. Where did the first oxygen come from?

 

  1. Watch the video clip. According to the theory of endosymbiosis, what were mitochondria originally before they went through endosymbiosis?

 

  1. How long ago did sex first develop?

 

  1. Watch the video clip. What is the Cambrian Explosion?

 

  1. What organisms were the first to take up permanent residence on land?

 

  1. What caused the first mass extinction?

 

  1. About what percent of species went extinct during the first mass extinction?

 

  1. Around 400 million years ago, what is the name of the fish that walked on land?

 

  1. What was Pangaea?

 

  1. Watch the video clip About what percent of species went extinct during the Permian extinction?

 

  1. What probably caused the Permian extinction?

 

  1. Why did the first mammals probably develop the characteristic of warm-bloodness?

 

  1. In the aftermath of the Triassic extinction, what organisms became the dominant land animals?

 

  1. What is the name of the most famous early bird that lived about 150 million years ago?

 

  1. What caused the fifth mass extinction 65 million years ago?

 

  1. What is the oldest known primate skeleton called?

 

  1. When and where did the first apes appear?

 

  1. How long ago did the oldest known hominid live?

 

  1. How long have our species, Homo sapiens, been on Earth?

 

  1. What is currently causing the sixth mass extinction?

 

Go to http://www.businessinsider.com/animated-timeline-earth-history-2015-11

and watch the 3-minute video.