Which of these events occurred during the Precambrian time?
Cyanobacteria filled the water and air with oxygen.
Early humans began to make tools, harvest plants, and make cave paintings.
Pangaea, the super continent, was formed.
Pangaea began to break apart into many continents separated by shallow seas.
Answers (2)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Which of these events occurred during the Precambrian time? Cyanobacteria filled the water and air with oxygen. Early humans began to make ...” in 📙 Biology if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
21. Part 1: Is it appropriate to describe a human heart as a "double pump?' (explain the term double pump and provide a detailed explanation that supports your answer) Part 2: How is the systemic circuit different from the pulmonary circuit?
Answers (1)
A man and a woman are both carriers for two autosomal recessive disorders, PKU (chromosome 12) and cystic fibrosis (chromosome 7). If they have a daughter, what is the probability that she will have PKU but not CF?
Answers (1)
Which step of neural communication involves a neuron assessing the signals that it is receiving from other sources?
Answers (1)
Rhyolite is associated with what type of eruption?
Answers (1)
Why can't the evolutionary relationships between certain species be explained thoroughly? Their fossils are too large to study. They have different physical characteristics. A link is yet to be discovered.
Answers (1)
New Questions in Biology
Why do large winds circle earth
Answers (2)
I'm not sure how to classify this question so I'll just put it under Biology Why would a biologist be interested in sedimentary rocks?
Answers (2)
The portion of earth in which al Life exicts is know as
Answers (2)
Which of the following could be a description of the cytoskeleton in a cell? Question 5 options: Scaffolding Water hose Drawbridge Jelly
Answers (1)
Fill in the blank. 1. A strong negative feedback process can cause Earth's climate to reach a state of 2. Climate change occurring throughout history is known as 3. describes one climate system interacting with and weakening another climate system.
Answers (2)