Apes Chapter 10 Vocab

40 cards   |   Total Attempts: 185
  

Cards In This Set

Front Back
Transegenes
Genes from one species used to enhance another
Food security
•the guarantee of adequate and reliable food supply to all people at all times •Fewer people today are hungry than in 1970
Undernourishment
•people receive less than 90% of their daily caloric needs
Overnutrition
Receiving too much calories
Malnutrtion
•a shortage of nutrients the body needs -The diet lacks adequate vitamins and minerals
Kwashiorkor
•diets lacking protein or essential amino acids -Occurs when children stop breast-feeding -Bloated stomach, mental and physical disabilities
Marasmus
•protein deficiency and insufficient calories -Wasting or shriveling of the body
Monoculture
•a large expanse of a single crop -More efficient, increases output -Devastates biodiversity -Susceptible to disease and pests •Narrows human diet: 90% of our food comes from 15 crop species and 8 livestock species
Pest
Any organism that damages valuable crops
Weed
Any plant that competes with crops
Pesticides
Poisons that kill pest organismsinsecticides, herbicides, fungicides
Evolutionary arms race
-chemists increase chemical toxicity to compete with resistant pests
Biological control, biocontrol
•uses a pest’s natural predators to control the pest -Reduces pest populations without chemicals
Bacillus thuringiensis (Bt)
-soil bacteria that kills many pests
Integrated pest management techniques
-Biocontrol -Chemicals, when necessary -Population monitoring -Habitat alteration -Crop rotation and transgenic crops -Alternative tillage methods -Mechanical pest removal