LIFESCIENC 7C PREPARATION TEST 2026
QUESTIONS AND CORRECT ANSWERS
GRADED A+
● ecosystem. Answer: A biological community of interacting organisms
and their physical environment.
● habitat. Answer: Place where an organism lives
● pollution. Answer: Release of harmful materials into the environment
● sexual reproduction. Answer: A reproductive process that involves two
parents that combine their genetic material to produce a new organism,
which differs from both parents
● assexual reproduction. Answer: reproduction in which a single parent
produces offspring that are genetically identical to the parent
● abiotic. Answer: Non-living
● biotic. Answer: Living
, ● food web. Answer: A diagram that shows the feeding relationships
between organisms in an ecosystem.
● food chain. Answer: a single pathway of feeding relationships among
organisms in an ecosystem that results in energy transfer
● consumer. Answer: An organism that eats other organisms
● decomposition. Answer: The breaking down of dead organisms and
organic waste
● producer. Answer: An organism that can make its own food by using
energy from its surroundings
● photosynthesis. Answer: 6CO2 + 6H2O + light --> C6H12O6 + 6O2
Plants use the sun's energy to convert water and carbon dioxide into
glucose (sugars)
● respiration. Answer: Cell process in which stored food reserves are
converted into useful energy for the plant.
Metabolic processes that produce energy (ATP) for all the life processes.
● symbiosis. Answer: A close relationship between two species that
benefits at least one of the species.
QUESTIONS AND CORRECT ANSWERS
GRADED A+
● ecosystem. Answer: A biological community of interacting organisms
and their physical environment.
● habitat. Answer: Place where an organism lives
● pollution. Answer: Release of harmful materials into the environment
● sexual reproduction. Answer: A reproductive process that involves two
parents that combine their genetic material to produce a new organism,
which differs from both parents
● assexual reproduction. Answer: reproduction in which a single parent
produces offspring that are genetically identical to the parent
● abiotic. Answer: Non-living
● biotic. Answer: Living
, ● food web. Answer: A diagram that shows the feeding relationships
between organisms in an ecosystem.
● food chain. Answer: a single pathway of feeding relationships among
organisms in an ecosystem that results in energy transfer
● consumer. Answer: An organism that eats other organisms
● decomposition. Answer: The breaking down of dead organisms and
organic waste
● producer. Answer: An organism that can make its own food by using
energy from its surroundings
● photosynthesis. Answer: 6CO2 + 6H2O + light --> C6H12O6 + 6O2
Plants use the sun's energy to convert water and carbon dioxide into
glucose (sugars)
● respiration. Answer: Cell process in which stored food reserves are
converted into useful energy for the plant.
Metabolic processes that produce energy (ATP) for all the life processes.
● symbiosis. Answer: A close relationship between two species that
benefits at least one of the species.
