Practise MYP Biology questions on 6 Interactions with Environment and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
True or False: The primary cause of oxygen depletion (hypoxia) in a dead zone is the rapid respiration of decomposers breaking down massive amounts of dead algae.
The living material in an ecosystem that contains stored chemical energy is called __________.
Which statement best describes the difference between how energy and matter behave in an ecosystem?
Why is 'food availability' categorized as a biotic factor rather than an abiotic one?
What is the primary biological reason for the development of 'dead zones' in aquatic environments after algal blooms?
True
False
biomass
trophic levels
inorganic matter
chlorophyll
Both energy and matter cycle continuously through the environment
Energy cycles through organisms while matter flows in one direction
Matter flows in one direction and is lost to space while energy is recycled
Energy flows in one direction and is lost as heat, while matter cycles
It involves interactions with other living organisms or their products
It is a constant factor that does not change over time
It only affects the growth of plants and not animals
It is a non-living environmental condition like temperature
The algae use up all the dissolved carbon dioxide
Fish use up the oxygen trying to eat the excess algae
Decomposers use up dissolved oxygen while breaking down dead algae
The algae produce toxic levels of nitrogen gas
