BSC 1005 ACTUAL EXAMINERS SET QUESTIONS AND
ANSWERS SURE A+
✔✔Competition - ✔✔Each Individual is suffering a cost
✔✔Mutualism - ✔✔Both individuals are benefitting
✔✔Predation - ✔✔Predator benefits, prey suffers a cost
✔✔Food webs - ✔✔Diagrams of species interaction in a community
✔✔What influences biodiversity in a community? - ✔✔1. Species interaction
2. Disturbance
✔✔Producer - ✔✔Makes its own food through photosynthesis (usually plants)
✔✔Decomposer - ✔✔An organism that feeds on dead organic matter
✔✔Primary Consumer - ✔✔Organism that feeds on producers (usually an animal)
✔✔Secondary Consumer - ✔✔An animal that feeds on primary consumers
, ✔✔Disturbance - ✔✔Based on human effects but can also occur naturally
Examples: Fires, Storms, Landslides, etc.
✔✔Ecological Succession - ✔✔After disturbances, the environment and species in a
community return to the state they were in
✔✔Nitrogen Cycle - ✔✔Nitrogen is vital for all life. Plants cannot take nitrogen, instead
they extract it from the soil. As decomposer's break down dead organic matter, nitrogen
is released into the soil in the form of ammonium.
✔✔Proteins are composed of amino acids, each amino acid has at least.. - ✔✔one
nitrogen atom
✔✔Agriculture - ✔✔Producing living organisms for human use
(Where the vast majority of our food comes from)
✔✔Agricultural Field = - ✔✔Ecosystem (Energy and matter are moved through the
system by various organisms)
✔✔Agricultural ecosystem vs Other ecosystems - ✔✔Simplicity: Minimum number of
species to keep it going
Inputs: Water and fertilizer are often added
Removal: Crops are removed from the ecosystem and consumed elsewhere
✔✔Selective Breeding - ✔✔Humans choose individuals with desirable characteristics to
breed to one another and then select the most desirable of the offspring to continue
breeding
✔✔Selective breeding and Natural Selection act on - ✔✔Naturally-occurring variation
(genetic biodiversity)
✔✔Difference between Selective Breeding and Natural Selection - ✔✔In natural
selections the selective force is the environment. In selective breeding the selective
force is human choice of breeding.
✔✔Artificial selection removes - ✔✔Genetic diversity from populations.
✔✔Main difference between Artificial selection and Genetic Modification - ✔✔Existing
variation of the population is used vs. genes from completely different forms of life
combined
✔✔Monocultures - ✔✔Communities dominated by a single species
✔✔Low diversity ecosystem - ✔✔Typically areas of high disturbance
ANSWERS SURE A+
✔✔Competition - ✔✔Each Individual is suffering a cost
✔✔Mutualism - ✔✔Both individuals are benefitting
✔✔Predation - ✔✔Predator benefits, prey suffers a cost
✔✔Food webs - ✔✔Diagrams of species interaction in a community
✔✔What influences biodiversity in a community? - ✔✔1. Species interaction
2. Disturbance
✔✔Producer - ✔✔Makes its own food through photosynthesis (usually plants)
✔✔Decomposer - ✔✔An organism that feeds on dead organic matter
✔✔Primary Consumer - ✔✔Organism that feeds on producers (usually an animal)
✔✔Secondary Consumer - ✔✔An animal that feeds on primary consumers
, ✔✔Disturbance - ✔✔Based on human effects but can also occur naturally
Examples: Fires, Storms, Landslides, etc.
✔✔Ecological Succession - ✔✔After disturbances, the environment and species in a
community return to the state they were in
✔✔Nitrogen Cycle - ✔✔Nitrogen is vital for all life. Plants cannot take nitrogen, instead
they extract it from the soil. As decomposer's break down dead organic matter, nitrogen
is released into the soil in the form of ammonium.
✔✔Proteins are composed of amino acids, each amino acid has at least.. - ✔✔one
nitrogen atom
✔✔Agriculture - ✔✔Producing living organisms for human use
(Where the vast majority of our food comes from)
✔✔Agricultural Field = - ✔✔Ecosystem (Energy and matter are moved through the
system by various organisms)
✔✔Agricultural ecosystem vs Other ecosystems - ✔✔Simplicity: Minimum number of
species to keep it going
Inputs: Water and fertilizer are often added
Removal: Crops are removed from the ecosystem and consumed elsewhere
✔✔Selective Breeding - ✔✔Humans choose individuals with desirable characteristics to
breed to one another and then select the most desirable of the offspring to continue
breeding
✔✔Selective breeding and Natural Selection act on - ✔✔Naturally-occurring variation
(genetic biodiversity)
✔✔Difference between Selective Breeding and Natural Selection - ✔✔In natural
selections the selective force is the environment. In selective breeding the selective
force is human choice of breeding.
✔✔Artificial selection removes - ✔✔Genetic diversity from populations.
✔✔Main difference between Artificial selection and Genetic Modification - ✔✔Existing
variation of the population is used vs. genes from completely different forms of life
combined
✔✔Monocultures - ✔✔Communities dominated by a single species
✔✔Low diversity ecosystem - ✔✔Typically areas of high disturbance
