Evolution
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Species | a group of similar organisms that can mate with each other and produce fertile offspring
🗑
|
||||
| fossil | the preserved remains or traces of an organism that lived in the past
🗑
|
||||
| adaptation | a trait that helps an organism survive and reproduce
🗑
|
||||
| evolution | the gradual change in a species over time
🗑
|
||||
| scientific theory | a well-tested concept that explains a wide range of observations
🗑
|
||||
| natural selection | the process by which individuals that are better adapted to their environment are more likely to survive and reproduce than other members of the same species
🗑
|
||||
| variation | any difference between individuals of the same species
🗑
|
||||
| homologous structure | similar structures that related species have inherited from a common ancestor
🗑
|
||||
| branching tree | a diagram that shows how scientists think different groups of organisms are related
🗑
|
||||
| petrified fossils | remains that become buried in sediments that are actually changed to rock
🗑
|
||||
| mold | hollow space in sediment in the shape of an organism or part of an organism
🗑
|
||||
| cast | a copy of the shape of the organism that made the mold
🗑
|
||||
| relative dating | a technique used by scientists to tell which of two fossils is the oldest
🗑
|
||||
| radioactive dating | technique used by scientists that actually determines the actual age of fossils
🗑
|
||||
| half-life | the time it takes for for half of the atoms in a sample to decay
🗑
|
||||
| fossil record | the millions of fossils that scientists have collected
🗑
|
||||
| extinct | no members of a species are still alive
🗑
|
||||
| gradualism | evolution occurs slowly but steadily
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
carlocrew
Popular Biology sets