Terms and definitions for N5 Human impact unit
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Bioaccumulation | The increase in concentration of a substance within a population at one level of a food chain.
🗑
|
||||
| Biomagnification | The increase in concentration of a substance within a number of populations across a number of levels in a food chain.
🗑
|
||||
| Algal Bloom | The rapid and uncontrolled growth of algae.
🗑
|
||||
| Indicator Species | An organisms whose presence or absence can be used to judge the conditions within an ecosystem
🗑
|
||||
| Herbicides | Chemicals used to kill weeds which would compete with crop plants.
🗑
|
||||
| Insecticides | Chemicals used to kill pests insects, such as green fly, that damage crop plants.
🗑
|
||||
| Fungicides | Chemicals used to kill the fungi that damage crop plants.
🗑
|
||||
| Biological Control | The use of a living organism to control a pest species.
🗑
|
||||
| Genetic Modification | The improvement of an organism by adding DNA from another organism into its genetic information.
🗑
|
||||
| Desertification | The creation or enlargement of areas of desert
🗑
|
||||
| Deforestation | Caused when trees are removed and then not replaced.
🗑
|
||||
| Overexploitation | The removal of a resource from the environment faster than it can be replaced.
🗑
|
||||
| Lichen | An indicator species for air pollution.
🗑
|
||||
| Freshwater Invertebrates | This group of organisms can be sampled to show the amount of pollution/concentration of oxygen dissolved in freshwater.
🗑
|
||||
| Leaching | The process in which fertilisers are washed out of the soil into a water environment.
🗑
|
||||
| Pest | These types of organisms have a negative impact on the growth and/or productivity of crop plants.
🗑
|
||||
| Fertilisers | A chemical used to increase the concentration of nutrients in the soil.
🗑
|
||||
| Intensive Farming | Processes which allow farmers to produce more food, at less cost, from a smaller area of land.
🗑
|
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:
dhsbiology
Popular Biology sets