1 of 79
Definition Term
By line transect - A line
How do you measure biomass?
marked along the ground and
samples are taken at specified
points.
By belt transect (more
information) - Two parallel
lines are marked along the
ground and samples are taken
of the area at specified points.
Both are forms of systematic,
non random sampling.
Allows for the study of how
differing abiotic factors in
different areas of the habitat
affect the distribution of a
species e.g. successional
,changes of plant species
moving inland from sea in
sand dunes.
Give this one a try later!
True False
Correct definition
How is distribution measured?
2 of 79
Definition Term
Conversion of ammonium What is denitrification?
compounds into nitrites and
nitrates. It is an oxidation
reaction that occurs in two
steps.
Give this one a try later!
True False
Correct definition
What is nitrification?
, 3 of 79
Term Definition
What are five examples of abiotic 1. Temperature
factors? 2. Light intensity
3. Edaphic (soil)
4. Water availability
5. Oxygen availability
Give this one a try later!
True False
4 of 79
Definition Term
In its form in the air, nitrogen How can nitrogen be used by
cannot be used by plants, so it living organisms?
needs to be combined with
other elements like oxygen
and hydrogen by bacteria to
make it into a form that is
useable by plants.
Without bacteria, nitrogen
would quickly become a
limiting factor in ecosystems.
Give this one a try later!
, True False
5 of 79
Definition Term
- As not all of the energy How does the efficiency of
available is used for biomass and energy transfer
photosynthesis - 90% is differ between trophic levels?
reflected, some is transmitted,
and some is of an unusable
wavelength.
- Other factors e.g.
temperature, may limit
photosynthesis.
- A proportion of the energy is
used in photosynthetic
reactions
Give this one a try later!
True False
Correct definition
Why do producers only convert 1-3% of the sunlight they
receive into chemical energy?
Definition Term
By line transect - A line
How do you measure biomass?
marked along the ground and
samples are taken at specified
points.
By belt transect (more
information) - Two parallel
lines are marked along the
ground and samples are taken
of the area at specified points.
Both are forms of systematic,
non random sampling.
Allows for the study of how
differing abiotic factors in
different areas of the habitat
affect the distribution of a
species e.g. successional
,changes of plant species
moving inland from sea in
sand dunes.
Give this one a try later!
True False
Correct definition
How is distribution measured?
2 of 79
Definition Term
Conversion of ammonium What is denitrification?
compounds into nitrites and
nitrates. It is an oxidation
reaction that occurs in two
steps.
Give this one a try later!
True False
Correct definition
What is nitrification?
, 3 of 79
Term Definition
What are five examples of abiotic 1. Temperature
factors? 2. Light intensity
3. Edaphic (soil)
4. Water availability
5. Oxygen availability
Give this one a try later!
True False
4 of 79
Definition Term
In its form in the air, nitrogen How can nitrogen be used by
cannot be used by plants, so it living organisms?
needs to be combined with
other elements like oxygen
and hydrogen by bacteria to
make it into a form that is
useable by plants.
Without bacteria, nitrogen
would quickly become a
limiting factor in ecosystems.
Give this one a try later!
, True False
5 of 79
Definition Term
- As not all of the energy How does the efficiency of
available is used for biomass and energy transfer
photosynthesis - 90% is differ between trophic levels?
reflected, some is transmitted,
and some is of an unusable
wavelength.
- Other factors e.g.
temperature, may limit
photosynthesis.
- A proportion of the energy is
used in photosynthetic
reactions
Give this one a try later!
True False
Correct definition
Why do producers only convert 1-3% of the sunlight they
receive into chemical energy?
