Question

describe the most important evolutionary event in any branch of the tree of life and its...

describe the most important evolutionary event in any branch of the tree of life and its outcomes?
Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

One of the most important events in the tree of life is The Great Oxidation Event This event is also known by the names: The great Oxygenation Event, Oxygen Catastrophe, Oxygen Crisis, and, Oxygen Revolution

It was a period in the tree of life when the amount of oxygen rose in the atmosphere of Earth as well as shallow ocean of Earth. This rise in oxygen was caused by the actions of cyanobacteria.The cyanobacteria by photosynthesis produced oxygen in the atm. Oxygen was in diatomic form. That is O2. And thus, it changed Earth's atmosphere from a weakly reducing atmosphere to an oxidizing atmosphere. This lead to the mass extinction of many existing species of that time, mostly anaerobic bacterias. This event happened to aid the growth in the diversity of minerals. And mainly, it lead to tthe origin of eukaryotic organisms. And it also lead to the formation of multicellular organisms.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
place the diagram below to describe the relationship among the domains and the evolutionary tree of...
place the diagram below to describe the relationship among the domains and the evolutionary tree of life
Construct (draw) a phylogeny of all plants and include important evolutionary innovations in the nodes of...
Construct (draw) a phylogeny of all plants and include important evolutionary innovations in the nodes of this tree. Create a key (i.e., a list of characteristics) of each of the groups that include the non-vascular plants, vascular plants without seeds, vascular plants with seeds without flowers and flowering plants. You should include the names of the most important groups on each branch (e.g., mosses, ginkgo, ferns, etc.)
A branch from a bristlecone pine tree is found in a sedimentary layer, and its age...
A branch from a bristlecone pine tree is found in a sedimentary layer, and its age is to be determined. The branch is a 5.0-gram piece of cellulose (C6H10O5: molar mass = 162 g/mole). This specimen is taken and placed between scintillation detectors, and over a 24-hour period 16,500 decays were recorded. How old is this branch? When the tree was living, carbon-14 accounted for 1 out of every 7.2x1011 atoms of carbon. The half-life of carbon-14 is 5730 years.
Which is the most important factor for continuity of a species from evolutionary point of view?...
Which is the most important factor for continuity of a species from evolutionary point of view? (a) replication of genetic material (b) formation of gametes (c) synthesis of proteins (d) none of these.
Explore on your family tree (genogram), describe your family. Talk about your personal life experiences –...
Explore on your family tree (genogram), describe your family. Talk about your personal life experiences – highlights major achievement or most challenging moment/issues/problems in life
What is the most important current event issue related to gender in the United States?
What is the most important current event issue related to gender in the United States?
Describe an event in your life that fits the properties of a Bernoulli process, being sure...
Describe an event in your life that fits the properties of a Bernoulli process, being sure to explain how each property is met by your event. State the number of trials and the number of successes for your event. Be specific.
What are some of the most important events in the history of life during Paleozoic Era?...
What are some of the most important events in the history of life during Paleozoic Era? When did it begin and end? What six periods did it include? What marks the beginning of this Era? Which main event took place in mid-Paleozoic? Which major groups of animals (invertebrates and vertebrates) and plants evolved and became extinct? How did the Paleozoic Era end?
What are the three most important technology that change our life.
What are the three most important technology that change our life.
Describe the features of common stock. Which is(are) the most important?
Describe the features of common stock. Which is(are) the most important?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT