4.7.5 Food Production Flashcards
What is meant by the term food security?
Having enough food to feed a population.
state the biological factors threatening food security
- rising birth rates
- changing diets in developed countries.
- new pests and pathogens
- environmental changes affecting food production
- increased cost of agriculture
– armed conflicts
Give two ways in which energy transfer to the environment can be restricted in food animals.
Restrict movement
Control the temperature of the surroundings
Some farmers feed their animals high protein food. Why?
increase growth
how does intensive farming increase the production of animals
- feed animals high protein food to increase growth.
- reduce their energy lost to the environment
limiting movement
regulating their surrounding temperature. - feed animals antibiotics to prevent diseases.
what are the advantages of intensive farming
higher yield of food
more efficient
allows easier quality control
what are the disadvantages of intensive farming
may lead to antibiotic resistance
cost is high
ethical objections
biodiversity may be reduced
what is meant by the term food security
state the biological factors threatening food security
Give two ways in which energy transfer to the environment can be restricted in food animals.
Some farmers feed their animals high protein food. Why?
how does intensive farming increase the production of animals
advantages of intensive farming
disadvantages of intensive farming.
