Unit 3 Overall Flashcards
Define ‘Food Security’
Ability of a population to access food of sufficient quality and quantity
What are the three adaptations to living in social groups?
Social Hierarchy
Social Defence Methods
Co-operative Hunting
What are the two stages in Photosynthesis?
Light dependant stage
Calvin Cycle
Why are plant field trials replicated?
Take into account variability between plants
Define ‘Genetic Diversity’
Compromises the genetic variation represented by number and frequency of alleles within a population
What is Altruistic behaviour?
Behaviour that harms the donor individual but benefits the recipricant
What is Integrated Pest Management?
Combination of biological and chemical means to control a pest population
How can genome sequencing be used in a breeding program?
Genomes can be sequenced and individuals can be identified that have desirable genes, and these individuals can be used in breeding programs
Why are self pollinating plants less susceptible to inbreeding depression?
Deleterious alleles are removed by natural selection
What is the ‘Net Assimilation’ of a plant?
Increase in mass due to photosynthesis - loss in mass due to respiration
If you combine CO2 and RUBP what is formed?
3phosphoglycerate
Describe one possible risk with biological control
Biological control can escape into environment and become invasive due to lack to predators
Define a ‘naturalised species’
A species that is established in the ecosystem
What evidence suggests there has been many mass extinctions in earths history?
Fossil evidence
What are the behavioural indicators of animal stress?
Stereotypy
Misdirected Behaviour
Failure of sexual parental behaviour
Altered levels of activity
