24. History of Life on Earth
History of Life on Earth
07:18
Learn with other creators
Practice this topic
- Multiple ChoiceWhy is the four-stage hypothesis for the abiotic origin of life useful?1569views1rank
- Multiple ChoiceThe early atmosphere on Earth is thought to have lacked which of the following gases?1010views
- Multiple ChoiceCurrently scientists think the early atmosphere probably consisted of __________.654views
- Multiple ChoiceThe Miller and Urey abiotic synthesis experiment (and subsequent, similar experiments) showed that __________.707views
- Textbook QuestionHow many different species have been identified by science? How many are estimated to exist?965views
- Textbook Question
Fossilized stromatolites a. formed around deep-sea vents. b. resemble structures formed by bacterial communities that are found today in some shallow marine bays. c. provide evidence that plants moved onto land in the company of fungi around 500 million years ago. d. contain the first undisputed fossils of eukaryotes.
701views - Textbook Question
A cell is placed in a solution that is hypotonic to the cell. Which of the following best describes movement of water in this situation? a. Water will only flow into the cell. b. Water will only flow out of the cell. c. Water will flow into and out of the cell, but the overall net movement will be out of the cell. d. Water will flow into and out of the cell, but the overall net movement will be into the cell.
1015views - Textbook Question
Choose the best definition of a fossil. a. a rock that contains information about an organism b. a bone, tooth, shell, or other hard part of an organism that has been preserved c. any trace of an organism that lived in the past d. any part of a dead organism
395views