457296
Descripción
Test por Bronte Penney, actualizado hace más de 1 año
|
Creado por Bronte Penney
hace alrededor de 11 años
|
|
Pregunta 1
Pregunta
What is an ecosystem?
Respuesta
-
All the organisms living in a particular area and all the non-living conditions
-
Organisms living in a community, including all the non-living conditions
Pregunta 2
Pregunta
There are 4 different types of bacteria involved in the nitrogen cycle. Which type of bacteria breaks down proteins and urea and turns them into ammonia?
Respuesta
-
Nitrifying Bacteria
-
Decomposers
-
Denitrifying Bacteria
-
Nitrogen-fixing Bacteria
Pregunta 3
Pregunta
What does each bar of a pyramid of biomass stand for?
Respuesta
-
the number of organisms
-
the mass of living material
Pregunta 4
Pregunta
Why is carbon monoxide poisonous?
Respuesta
-
It kills red blood cells in the body
-
It replaces oxygen and combines with red blood cells
Pregunta 5
Pregunta
What is the name of the bacteria that turns nitrates back into Nitrogen gas?
Respuesta
-
Nitrogen-fixing Bacteria
-
Nitrifying Bacteria
-
Denitrifying Bacteria
Pregunta 6
Pregunta
What percentage of the atmosphere is Nitrogen gas?
Respuesta
-
78%
-
21%
Pregunta 7
Pregunta
Why do plants need nitrogen?
Respuesta
-
For growth
-
To speed up the rate of photosynthesis
Pregunta 8
Pregunta
Here is a food chain:
dandelion ----> rabbit ----> fox ----> flea. Which is the tertiary consumer
Respuesta
-
fox
-
rabbit
-
flea
Pregunta 9
Pregunta
Only 10% of energy is transferred from one trophic level to another. Why is this?
Respuesta
-
energy is lost through heat, respiration etc
-
Organisms can only take in a maximum of 10%
-
Organisms only need 10% of the energy
Pregunta 10
Pregunta
All the species in a food web are interdependent. This means if one species changes it doesn't affect the others.
Respuesta
- True
- False
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.