Nitrogen cycle
what is the term for organism that fead on dead materials
decomposers
which of the following adds water vapour to the atmosphere.
A)Condensation
B)Evaporation
C)Precipitation
D)Transpiration
A) Transpiration and B) Evaporation
what is the main gas involved in the carbon cycle?
carbon dioxide
what is mutualism with an example
both organisms / species are benefitting and example would be a zebra and an oxpecker
what is conservation
conservation is the process of maintaining something whether in situ or not in situ or the planned management of an ecosystem to maintain biodiversity.
which process in the nitrogen cycle is carried out by nitrifying bacteria
A) nitrogen fixation
B)Denitrification
C)Nitrification
D)Ammonification
C) Nitrification
Define transpiration
The process of water evaporating through a plants leaves
name one process that removes carbon dioxide from the atmosphere
photosynthesis
what is a parasitic relationship and an example
where one organism is taking advantage of another usually resulting in harm against the host. An exaple would be a mosquito and a human
what is quadrat sampling
a method used to estimate the population size of a specific area. This is done by placing a square frame at random locations to estimate the population within that quadrat and multiplying is by the total amount of space
What compound do composers produce when they break down proteins in dead organism and waste
A)Ammonia
B)Nitrate
C)Nitrite
D)Nitrogen gas
A) Ammonia
Explain why the water cycle is described as a continuous cycle
Because it has no beginning or end, with water constantly moving and changing states.
explain how photosynthesis helps reduce the amount of carbon dioxide in the atmposphere.
Photosynthesis helps reduce the amount of carbon dioxide in the atmosphere because, carbon dioxide is a key component to create their own food while also producing oxygen.
describe how a fleas relationship with a dog is parasitic
the flea benefits by using the dogs blood as a food source and the dog suffers with blood loss as well as irritation, itching and potential disease transmission.
why is conservation important
conservation allows you to maintain the level of biodiversity within an ecosystem ultimately protecting all the species within it.
Name two types of bacteria in the nitrogen cycle and their role.
Decomposers- amonification
Nitrogen fixing bacteria- convert atmospheric nitrogen gas into a form that plants can use
Denitrifying bacteria- denitrification (a process which coverts nitrate and nitrite into gaseous nitrogen compounds, which are released into the atmosphere)
Nitrifying bacteria- Nitrification ( a process where ammonia is converted into nitrites and then nitrates)
describe what happens to rain water after it reaches the ground
Percolation-> Transpiration + Evaporation-> Condensation-> Precipitation
Why does deforestation increase the amount of carbon dioxide in the atmosphere.
Since photosynthesis is one of the larest methods of carbon capture, a decrease in trees means there are less plants photosynthesising and absorbing carbon.
Describe the mutualistic relations between bees and flowers
bees and flowers have a mutualistic relationship where, the bees get nectar from flowers which acts as their food source and in return the bees pollinate the helping them grow faster.
what is biodiversity
biodiversity is the variety of all life on earth form the genetic variation within species to the variety of species and the ecosystems they come from.
Explain the process of ammonification
the process where nitrogen in dead organisms and waste is converted into ammonia by decomposers like bacteria or fungi. It is then released into the soil becoming available for uptake from plants
how does deforestation effect the water cycle
lowering the rate of evaporation and transpiration resulting in less rainfall leading to possible droughts
Explain how human activities are effecting the natural carbon cycle.
Human activities such as the burning of fossil fuels, deforestation and some industrial works are effecting the natural carbon cycle by rapidly releasing stored carbon back into the atmosphere
explain how parasitic relationships can effect the population of an ecosystem
They have a huge impact by effecting host survival, reproduction, behaviour and competitive ability.
A student finds 10 daisies in a 1 m² quadrat. Estimate how many daisies there would be in a 20 m² area.
200 (i think..)