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Biology

GCSE · AQA

QuestionsFlashcards

Communicable Diseases
Monoclonal Antibodies
- Producing Monoclonal Antibodies
  6
- Uses of Monoclonal Antibodies
  7
Plant Disease
- Detection and Identification of Plant Diseases
  6
- Plant Defence Responses
  6

Farming Techniques Flashcards

All 6 cards in this deck

How can the efficiency of food production from farm animals be improved?: By restricting energy transfer from the animals to the environment — limiting their movement and controlling the temperature of their surroundings.
Why does limiting a farm animal's movement make food production more efficient?: Less energy is transferred (lost) in movement, so more is available for growth.
Why is rearing animals in a heated barn more energy-efficient than rearing them outdoors?: Less energy is lost as heat / less energy is used maintaining body temperature, so more is used for growth.
Why are some farm animals fed high protein food?: To increase their growth rate — the protein supplies amino acids used to build new body protein (biomass).
Give two disadvantages of rearing farm animals indoors in crowded conditions.: Disease spreads more easily (so more antibiotics/drugs are used); extra cost of heating, lighting and feed.
True or false? Animal welfare is one of the ethical objections to intensive indoor farming.: True. Animals have their movement restricted and cannot behave naturally.