Biology

The accumulation of non-biodegradable pesticides in the food chain is called:

Which of the following is an example of an endoparasite?

Eutrophication in a lake is primarily caused by an excess of:

The actual area or specific functional role an organism plays in its habitat is its:

What happens to the amount of available energy as it moves from lower to higher trophic levels?

Which of the following is a 'detritivore'?

The primary cause of the depletion of the ozone layer is:

In the carbon cycle, through which process is carbon returned to the atmosphere?

A 'Pioneer species' in primary succession on bare rock is usually:

Which of these is an example of an 'In-situ' conservation method?

Which animal is the top predator in a grassland food chain: Grass -> Insect -> Frog -> Snake -> Hawk?

The conversion of atmospheric nitrogen into nitrates by bacteria in the soil is called:

Which of the following describes 'Commensalism'?

What is 'Biomass' in an ecological context?

Which of the following is a major cause of soil erosion?

What does 'Ex-situ' conservation mean?

In a pyramid of biomass for a pond ecosystem, which level usually has the least biomass?

Which chemical is used to test the presence of starch in a leaf?

An inverted pyramid of numbers is typically found in which ecosystem?

Which organism is known as the 'friend of farmers'?