|
Question |
Rating |
View Answer |
|
Why is leguminous crop rotation used in agriculture? |
|
View Answer |
|
What do biomass pyramids represent? |
|
View Answer |
|
What do energy pyramids represent? |
|
View Answer |
|
In the ecological study of food interactions how are the autotrophic beings called? |
|
View Answer |
|
What is population growth rate? |
|
View Answer |
|
Which is the autotrophic group responsible for the production of most part of the molecular oxygen of earth? |
|
View Answer |
|
What are the main causes of the loss of the biological diversity nowadays? |
|
View Answer |
|
How do the availability of water and light and the climate affect the growth of a population? |
|
View Answer |
|
What is the carbon cycle? |
|
View Answer |
|
What is a food chain? |
|
View Answer |
|
Why transgenics are considered a threat to the environmental safety? |
|
View Answer |
|
How are ecological interactions classified? |
|
View Answer |
|
Besides mercury which other heavy metals cause toxic pollution? |
|
View Answer |
|
What is the nitrogen cycle? |
|
View Answer |
|
What is the difference between primary ecological succession and secondary ecological succession? |
|
View Answer |
|
What are tropic levels? How many tropic levels can a food chain have? |
|
View Answer |
|
What is the most abundant form under which nitrogen is found in nature? |
|
View Answer |
|
What is predatism? |
|
View Answer |
|
What is the typical conformation of the age pyramids of underdeveloped countries? |
|
View Answer |
|
What is an ecosystem? |
|
View Answer |