Ecology and Environment
Description: ecosystem | |
Number of Questions: 16 | |
Created by: Avani Handa | |
Tags: ecology Ecology and Environment Biology |
Vertical distribution of different species occupying different levels is known as
Which of the following processes results in release of inorganic nutrients after humus is degraded by microbes?
The entire sequence of communities that successively change in a given area is known as
Which of the following is defined as the full range of environmental and biological variables affecting an entire species?
Sea otters, an example of a keystone species, limit the density of which of the following species?
Who was the first person to use the term ecosystem?
The process in which some soil bacteria use organic nitrogen-containing compounds as a source of carbon, and release ammonium ions into the soil, is known as _________.
In terrestrial ecosystems, roughly 90% of the net primary production ends up being broken down by ________.
What percentage of world's net primary production is generated by marine ecosystems?
Organic matter, which controls methane production in eastern Siberian lakes is accumulated during which of the following epochs?
Which one of the following is defined as the speed with which an ecosystem returns to its initial state after disturbance?
Ponds that dry up completely each year are often known as __________.
Streams and rivers are which of the following basic types of freshwater ecosystems?
The shallow zone near the ocean shore is known as _________.
The part of the sea/ocean/deep lake comprising the water column that is near to the seabed is known as __________.
Polar deserts such as McMurdo Dry Valleys remain ice-free because of which of the following type of winds?