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Total rare pollen carriers: 19 + 9 = 28
An anthropologist tracking cultural adaptation in Arctic communities notes that in a population of 1,200 individuals, 60% speak Inuktitut, 30% speak English, and 15% speak both. How many individuals speak only one language?
Let A = Inuktitut speakers = 60% of 1200 = 720
Let B = English speakers = 30% of 1200 = 360
An ichthyologist measures coral reef fish biomass and finds it decreased exponentially by 8% per year. If the initial biomass was 2,500 kg, what will it be after 5 years? (Round to nearest whole number.)
An entomologist studying pollination efficiency finds that a single bee visits 45 flowers per hour, while a butterfly visits 18 flowers per hour. If a field requires 2,520 flower visits for full pollination, and 4 bees and 6 butterflies work for 3 hours, did they complete the task? How many visits were made?
An anthropologist analyzing ritual participation in 300 households finds that 70% participate in seasonal festivals, 45% attend annual ceremonies, and 20% attend both. How many households attend neither event?
Let A = seasonal festivals = 70% of 300 = 210
Let B = annual ceremonies = 45% of 300 = 135
They pass each other at t = 3 hours.
